From 9318b9bd686dc86d2e6d6530178764e58b9bcbe0 Mon Sep 17 00:00:00 2001 From: Chris Schindlbeck Date: Fri, 10 May 2024 13:33:30 +0200 Subject: [PATCH 1/5] Fix various typos in topics/certificates (#10275) --- certificates/aws-cloud-practitioner.md | 4 ++-- certificates/aws-solutions-architect-associate.md | 4 ++-- topics/aws/README.md | 2 +- topics/kubernetes/README.md | 2 +- topics/linux/README.md | 2 +- topics/security/README.md | 2 +- 6 files changed, 8 insertions(+), 8 deletions(-) diff --git a/certificates/aws-cloud-practitioner.md b/certificates/aws-cloud-practitioner.md index b98bf253f..7e72b631e 100644 --- a/certificates/aws-cloud-practitioner.md +++ b/certificates/aws-cloud-practitioner.md @@ -165,8 +165,8 @@ Read more about instance types [here](https://docs.aws.amazon.com/AWSEC2/latest/
True or False? The following are instance types available for a user in AWS: - * Compute optimizied - * Network optimizied + * Compute optimized + * Network optimized * Web optimized
False. From the above list only compute optimized is available. diff --git a/certificates/aws-solutions-architect-associate.md b/certificates/aws-solutions-architect-associate.md index 2ee9bb352..044a74961 100644 --- a/certificates/aws-solutions-architect-associate.md +++ b/certificates/aws-solutions-architect-associate.md @@ -188,8 +188,8 @@ Read more about instance types [here](https://docs.aws.amazon.com/AWSEC2/latest/
True or False? The following are instance types available for a user in AWS: - * Compute optimizied - * Network optimizied + * Compute optimized + * Network optimized * Web optimized
False. From the above list only compute optimized is available. diff --git a/topics/aws/README.md b/topics/aws/README.md index 49cbd68ba..c17d49305 100644 --- a/topics/aws/README.md +++ b/topics/aws/README.md @@ -947,7 +947,7 @@ Launch configuration is a legacy form of Launch Template that must be recreated In addition, launch template has the clear benefits of: * Provision both On-Demand and Spot instances * supporting multiple versions - * support creating parameters subsets (used for re-use and inheritance) + * support creating parameters subsets (used for reuse and inheritance)
#### ENI diff --git a/topics/kubernetes/README.md b/topics/kubernetes/README.md index 982a13f8b..6a404320f 100644 --- a/topics/kubernetes/README.md +++ b/topics/kubernetes/README.md @@ -2739,7 +2739,7 @@ Istio is an open source service mesh that helps organizations run distributed, m
Name two controllers you are familiar with
-1. Node Contorller: manages the nodes of a cluster. Among other things, the controller is responsible for monitoring nodes' health - if the node is suddenly unreachable it will evacuate all the pods running on it and will mark the node status accordingly. +1. Node Controller: manages the nodes of a cluster. Among other things, the controller is responsible for monitoring nodes' health - if the node is suddenly unreachable it will evacuate all the pods running on it and will mark the node status accordingly. 2. Replication Controller - monitors the status of pod replicas based on what should be running. It makes sure the number of pods that should be running is actually running
diff --git a/topics/linux/README.md b/topics/linux/README.md index 80a750c76..92e3cac74 100644 --- a/topics/linux/README.md +++ b/topics/linux/README.md @@ -1649,7 +1649,7 @@ There are 2 configuration files, which stores users information
Which file stores users passwords? Is it visible for everyone?
-`/etc/shadow` file holds the passwords of the users in encryted format. NO, it is only visible to the `root` user +`/etc/shadow` file holds the passwords of the users in encrypted format. NO, it is only visible to the `root` user
diff --git a/topics/security/README.md b/topics/security/README.md index 8bb497331..a4eb9fbbe 100644 --- a/topics/security/README.md +++ b/topics/security/README.md @@ -42,7 +42,7 @@ The principle of least privilege refers to the practice of providing minimal per * Subject name * Subject Public Key info -Every certificates must be signed by a trusted authority, a certificate chain is a concatenation of mutilple certificates signed by a more trusted authority from the one delivered by the website to the root Certificate Authority (CA). The root Certificate Authority is the top most trusted authority and every browsers embark their certificate natively. +Every certificates must be signed by a trusted authority, a certificate chain is a concatenation of multiple certificates signed by a more trusted authority from the one delivered by the website to the root Certificate Authority (CA). The root Certificate Authority is the top most trusted authority and every browsers embark their certificate natively.
From b2e29b87bfa73d2629c2e2df4160050d4115d7c4 Mon Sep 17 00:00:00 2001 From: Demchenko Kirill <30822663+KirillDemtchenko@users.noreply.github.com> Date: Fri, 10 May 2024 15:33:41 +0400 Subject: [PATCH 2/5] Added point about binary files to git best practices (#10270) Co-authored-by: Kirill Demchenko --- topics/devops/README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/topics/devops/README.md b/topics/devops/README.md index 46e82e112..738afd347 100644 --- a/topics/devops/README.md +++ b/topics/devops/README.md @@ -162,6 +162,7 @@ Things to think about: * Share your changes frequently * Coordinate with your co-workers * Don't commit generated files +* Don't commit binary files
From f9f1fd6023765c1ad5ee912205fc53215c4382c5 Mon Sep 17 00:00:00 2001 From: arnabbis <99881054+arnabbis@users.noreply.github.com> Date: Fri, 10 May 2024 17:07:42 +0530 Subject: [PATCH 3/5] feat: added nodejs module on the topics and shared some basic question asked in interview (#10267) * feat: added nodejs module on the topics and shared some basic question asked in interview * fix: added image and link in the readme file --- README.md | 1 + images/nodejs.png | Bin 0 -> 23001 bytes topics/node/node_questions_basic.md | 20 ++++++++++++++++++ .../solutions/node_questions_basic_ans.md | 16 ++++++++++++++ 4 files changed, 37 insertions(+) create mode 100644 images/nodejs.png create mode 100644 topics/node/node_questions_basic.md create mode 100644 topics/node/solutions/node_questions_basic_ans.md diff --git a/README.md b/README.md index 6a0b10ebf..41d9aca0f 100644 --- a/README.md +++ b/README.md @@ -94,6 +94,7 @@ Misc
Misc
Elastic
Elastic
Kafka
Kafka
+ NodeJs
NodeJs
diff --git a/images/nodejs.png b/images/nodejs.png new file mode 100644 index 0000000000000000000000000000000000000000..9349c81dcf323dbd3be8977d26a2dab0774f6ac8 GIT binary patch literal 23001 zcmYIPWmuG5w;luukw&_^LFoqR7U^zjknWI>4(SHz?oOq zVgj80Bk&cpzLc0S@Cp3g3N?9wK&nd;!h(v<^GB&L^&h4#uX40p8Q+Z45nWjw+I}lt zqS_g(F}E0-%?hFr4dd-@qo|#2Va}=$H3$<8YY{OxX}SKXg^qr+>~Q=O2_jS$)d0Kt_;}YzH6QPHbm^u~+BtXzvF2qSqPllqQaUa`x zgs1gXbg;u5v~oY*y7BRp&SNM13inFmD!Ce9-n$r1-$}%lRw} ztYe!^!9#B5=+qH`Ga4X;d3EF_#q|ubABC8NsFbxCSi?bRT4ZY0*ZS9;$q*pW=)BKt zX-Z67H1dO%&xJC)SU^}1$x5Z$c#9g;TsS+Rk_-`)9K9Jy)X> zIR%T2@MDJ{NgVr)Az&jD<;k2Hd~&v|t`%_$?ZJGaM{y#Dva-McNwWCR{SMh?34j_I zQBL~Hp!M%6a6@71@tnw=YPVs|dG&R?@Yd)c&>wd_cdpXhC}?x3FAOOBy}yZu`{CA& zf(guz=A1i#<=fb(k!!JJH&vyKfh(8-=y?-qTdcebd-6C8?a6>qG1b9Vv}6{%CC9tt z7EJj{1kkCViSGUdJwQkt6}1w`?{n3tz}$fCnB? zMZ$TA2M6-^#*$>qLw!~gajQLMzN(9=>72{JIA3N;oW=abQ)k{MTLFIfg9tW%_s?4D z+!*k{pd1q){*0RZdK{|vQ;-g6Ab(~}--cP1)|7HfIiOuCB6J9BH&Ih8#i&(&%a{ok zryas6Whdov-3}^5H?d1%>TN*QR4AEvcapXjlp%y9&gb&SG>9Wp4y-lg2N57pq=DdJ zhKcbZX28f;ecQ#(&5(ZOvR z%j2aLUg>Ba^6=pYe0&2E&>$&9S{V2k@%5rI;06jsKl#+9<_Thb9V~qXoL~Y^#kI#k zsY$7AZmtukkUSAZHY=Y%e=t7(LzN0}kTfF4;?BP#o8EGmE5ebVdg{8)FT*8WRkX@g zfyIKtrY3!@5m6f+qA7l`MqIA$f+zb>QnKM&z`^IDfwkeYO$;SVpNFqZ&yu#Kh{(gs z_8*QiM?5&6U;(Q_>vRle1NT>yQuesM^+_=Iq6~+Ge{FtrtC4YOzPZM1cl+0Q}wv z`}c#A6=#O{{2q$Mv+!YH%B&U$;vH8cWE2L|L*J-m> z+xdq{ECtt)@un8($8s|gFEpLcctsL~rOL?`-)co8AVG$JHheRajkc;~Yujtm;CNhF7 zJ&OwACR%mjH#Iv7u7vr#rBe<|wa$d7KPtcvAso=mq)&yZZ2jRNhE-4_7olQ>{03_A2h|@T+!&%MH$7isHPIYgG~B*4Fx%qJv4FH zS3;oM*2m+*`XrUWKMRg@^=#yp7JSpJJ(IRAE{Nw2J>@;bU1&i9Ra}e1sNM)$hNUPT za#xm3f+I0iS`+i+StkS2gz@7Z1R@u+k=nA&@|Iu4p65^GN=KI~aMFjx3UQ8bVy3e@ zyMO3fE5RX}y&WV7PFvVoeQ=n1C@sEgU9^0kw0~)(SMy_jLx1i(N*-r=v;zVZmiXz2 zj*E=*gIBO11AFHokvAUp3H`?xYVEK zH{#4!qg>+oyLMIx?{MJvcQ;vHCuzYuruHmJ0p$lV?tB>T&vWef8?K~J0O%3 z1yY{~rW4yS(K*#P^F^A|L{(t&*gxEu+#4CcG#|lV z;g-kKruv9w+{9K9ZU!|ce^e1X-&L5^Ja{~{YX0$qZ$95)m_O(XUBJw5S4Ud7hyskk zOE;N4_|uhjz?WG-2MHxD_9}N4$Nd_&p3NQL{*d*ceIeSpRS0+pq9@r>bMlg0Shv}8 z98ZN0a4qX!=jjV~6Tu#K>00Ie)THQw$Hk6reoIAD=fx34yq@MB?|@}qvO{c2_NX&) z$cx9f`73zfI$M*xLi%Dnbd57y2$kjjeg4PcxnC!5Zgb{0hN%$PM{6jMup>eL2)42f zCv^GIMoxLk3ON5ES#o_rw74uL0}t0&=HzrureOx2*mh>AyG=@#mJr|VhdY2Gr^Y;R z=t^Z>0~c(M-IT7MsQTyRNx`0~qE*A9vwzIt`!yai`upYg-3-*cpooM5_d9-|cH%GQ zMoFY`7v^Ph@F-?-U<{ayQBTX8?eJ>BRhlw2t9g94)(X(Y2UQavCj8(s$RBo2yh+;e>I`eCgpzcSzYk4Vl<6MD@8GJmtlP@2u3Vn6VQ5)Y z9I?D6U4YNnwGsM?{ALs?pOl^ig=6`XmGiM8g@}!FNJ>A2yvHozK<_VvnShqd<l&XOZ;nNzT2RMZT*ln;?vLgd317agY{e+F24CARYelx%J-s%ee?A36w#XGhxO&rC zvnIlRa#uf+FKS(xfksw^1wDB+79?}^(5y?W2eiifj{jLjrG@b~LU%^Sf*BC8!CC;p z+7xf=JS5Y?%|IT2TID|0(B|cQw1Qd5N{h%ix?c#hMdYS2Bj~l7SnoIkOA^t#o~Ssd z%{YN8f5?>0)AiYsQNpwa>tk~ImuO0sFgEj@e1I8Q;L7Aka*tlVge>~NrFr6MT$g+7 zW@}4peVGC7WH7@GCiPtx$`V*GooA5j_^|b!!3oF;mi>?ejCW-fBlKeA8R5<%Qq2D@TrOp`HMj3$bn~;T&em-i7v{WLg&As#~5W%o~c) z)(ADyjt;&to#LMFt2Hw+zHSP$P~cq|yef1bDO;?-oF)`p$V!O=_hPZ5mDw9dy31}{ zIim;k^y<-v8hI-x=-138uJj!r=QS%iJWNTBPfg|2K$atpDwEEH@5d-B?-)uMY`f&S z%kc}(Ap}kcV+Ju%$a-Wp@{h@pDNn-Zm;ZT-YL>7%H6OcG&g9` zu~_!Az;P!NscQ*P!tzD%t<>0lX|#2Gw`m$@Og(4WLTkO{_G1(7%!o3CKV&@e!dADH zYf>D0ywwVSY=;_qVAd`ya|_=RlPC_tmZNK4=1K#D(Z_#?XBBgBQJ$-h>8F^D za}2E=bJqd$7aQji(di;JXoMm{IDxU%{Y>@RLUO~Cf(8CnySDU9?^U}2Q@ZfV`23A@J~1P z=WpSQ#tI-bRdi0eVXlFbC(-?*NjRO)Ura=h^?2I2)7Lk|-b$?F@?+lULvdC;Y5Vf0 ztA~rq^z}d1&hbSNvq%G=)qrxLf9sO9)cyrig=OxtJc@kw$kXzED7vV%6M@D8v}I>L3RY<$xr#zlsRF=rTH2G*PK2;av^8_r`-2`?++EiDIsU- zr=uLqhEnH(9dqb!qjLQj5x|wXrV0%T3nzkUI#YhiYF3(x*Dm?{x#U*0n3SKCSA$Yj zn{i~kzGbZerR_tPo&~u{`Fl{(rV3X9VM+euh4E!ke4;+W3T6qtGJAT6zv0YxdYkfC zUoL^>h4Wuam{xbU%4Q)y4%yyj%-u^nT^5Bcfj4^6LN>_awU3F;TMo5{h%&+7d0R5L zFEaT~UFZd}=65C$n}Ry_$JK+OAx8(x$-w*O@bfm%B9ReMDLnU+vFo@I4%H96L)(u{ zanVsS$!RAp9>N-8)f3YM;5&CX2Z#*{ENCDU<^oO<+io%ujFN)SedG< zRBA=!bYeG_p@Khy(4*nV&UM*juLW)m+ztwaiQ9@{tP7h`TeBb3meR_-xBDfKan~bH zkJ)BbGMMcS(Q%RF>D>TG1dKYL5FMoVpiG6jypK-(g>CDJHmijDV6_3QF`@z=2m5^jqi&a zUaq;<`KfAOGj4ROFOG%rzfL#am3I$n=mFRHypHXkK)ny><|W{B`eX6LnYU5op~_Rn z8d{j2(jy!O-)>b;W<^2AC6_OUmAY%!d$LIS2u)#R1tLRG1#(dQCAvIXX%uWb+1o1S zI5RrCO-?xJ;ra&Tt9bNT74ODJ+*+4z(ZXn+#i9=j!#Yp$9uFVb zcKsL&d50$*Op7<3a3yqDdkL&yW`xTkbUN3DruO2%^B_wXqU1+#G!|db*t+H?8(m(CDmNv)Epk$l+ zItSI~k{qn3c~#pRu?5f(Soo}-=Jz_zwU+jd_6xqPhXnmWBI)H&73JwVs{41lSZmrT zwZ4WS{h_oOh!mGfs`mqlx$oRP#^MaGZLvL4IU<*GLEdxV!R$!|K7G>L5O|Jd`KeI1 zDS|eoruS5x@U@@gzTPEk>PdO!L9hRDOg|z)B%NaiV2f{a^8-$Z1=C7lzE7@cc)G6J zWyx7A@6T>NSyn4#1(aKy8wZ}axQjnE?Yj(e@cccajM{?$jjATBL_U>=xxnA)5|kO{5ivn}H>f>n6h<#qOuiEfCpfF9NhN<^W)5h(1#5h{M-?P-J-J zCXHwnqo(Id-h+clK|ZtnF4n=$3vK0!$M@abq&}DPlQK!ykp1 zYNS57J(i^{ZM-x(jo`xD!sm1@5d+mTAg+Qgu>lP-`Ov#E3*Pv8#_#z4*kPn=jAd7z zwlQP3;&R|@?jt0%9sAOsJ!RCsiKVYsgF3W+Pjckc^zbC$#e8bc>LWkl*8!UN$tdHD@LOW{Dh@6hQjsh$jh1lyS* z^668F*=eOR1MR&!_%AMR>O^fxJCf;_@A>boOzMFYh(QSU8Ge_?%RfIbZnCyz_QYSH`L|l5(dwJRv~6f6>ihZi|ez>JaS;rkZ)KO_Ge}r${`T zQsU@*hYSdU*M-BHOUJ9M4GWHTtw7!>aM>TMRHfuMyR06@#BAILS&AD(Y`k0VJx8{S zfI?#9Q*LU}1nQ-pTO)w9up^=N1V znS}Sl-dB*fk4R+8)`}x$`kBSU7|WruNJI#$5;{yUWm6$CAKs{!OqgR_srj!NbkG+= z#TmklRTeFs3zMM1%F3za+M$#D_Ho3y{BxBc@1FjstA?uwE&Fv8!ld00mYVVy9zv?x$`OytGJfB`PllvTY4A=DIg&*HJp4q z0pNuVqLHj;@wmO#+H2zjALOxg*oN-u>vYAKTZ?jSq}o^FqQ^GRm*d42^z)vm1z3*jIDEF_G4IwVVPtasnjJ1eqA zr*n4gt+tlcv*Uj7_kH&T#nnvcY<5*W%vO0k)0gt^Q2eg|F}5kDCxR!qWK1e=#X(8ZM;4 z9nlxI)9um_po~kso|Vmjh$wzf;<6naT8ZzCX;~-IWBT=>&T_*9n^LEeHg>#U2>q{A zDFK`f1yD-BeT7U}?s|{Qq919gsz*X&^)%vzbyAiLyF&KhwqJ7(iOJ{2W{Xuu{xXT;%0n|1N_ZmMZcxa7>Vp}GFKK^Pyy zG5Gtxo47StRc9i%Fn$9X2DiTVPDr<>ms=wvDEtHE97!1AwU=F&pIm*BL~ZKhaqP&x z0UeOrfcsmb+e>;a*M{QYjcxc{itE7){inW4+L-9C2u(78j5s27PKciPKHsNubEg*^ za-yDO$^0GZA0&R@Xci&9#*zl`sbHkryS1~sou*Yx%wU#9mF%w|0v&BQ1)2I!hs8r=t+oYg?ZXVl+pvEyH2{OIWhj+uAyHq zVz_vc@{ws5)^ZAHN~8xUjb|Wb20c@cPL3)q<&njrDf!Tyi;RT&^n1kGnao{g%g(Gy zbx|r^YF*V_fe!xpoL&|CS*>4d{kGdp^DfFp zvb`DFw7XPHYkVqIH};#{#oN=EbfHmhU<4hXBIlP`e9KmKN&l^{RWQ1sIku-!&CTR= ze9;in*M*3#H_w_G6wp#{D#sIUStvgJ6(Xx1Rg1kz|FF$#D~>xq#~A@b#yTvKvd0$V zzCJyOTsEzdb+75JedQb^Y-`>U{pkD_(Cx(xbzL;6s?y13+pu7DExmNfF-K^}l0D-Q zFHWF+99r$)UV`-p2G>L%aih;CE0?E=`dCR54-r2r!c|Bb!*tQdtF5< zwUA2$9KPDF!%FrKH8*cQ$5`%bdC=?eh|Qeh2!uxpIJTPuc4u(vZ$sY_F~h8jwz97s zPFs$)o4KQ*GP7YBPo|L5umJ^x9Y&G6kPS{`QNN1biF^rUqfUv1n0ZKb#;tsXXlkVG3fQbg!4#%`r@_eCyp?)Gq%a=EXZ<-ARek**^B^pQb{P zuS4I~vmth&c9*(h1`ve~&CVTkyxpX8qy4bCmDI2w}Kkty=S>M(u zG5*3YCbc;X4FJdz^&6AYtKJomZ$}MAm9tSI%q2nAo|ujz{BRvOUJj!T4cH8dXqlgU zrb&-h-1i3dHc|9d>H9CfIaP+Ffut`)c*167b`Ap#oLawAk5AKoI6vsddGL^Nt7%_- z)&~K46vhgn4UJ{lr3^3*YF+tz+mSxsK*R0wwOy6cvFqU3*V|P&^kVFANyMCD26BQn z0?s9+j>~0Ye*Skt7m8?*z83(45WF`=!X3ag;%`IY9RBglpTVQQ{BUuWb0w{uUv$8E zs-2Q!HRdwRGuhpm@L70jPN$596+ebLBMjx*Fw6m+J=0@H8EUKT+u3G|2g$~)6RTx; zaQ+kTb%ZK(Dkab6pV-n2C5P=SDy}WiR{v2Z(fbl@1{0b3)uwt)r}omcyMJ_G3|6>0 zaZ;Cxu65C^`yqlelIJ^O11p|AkZ2l)()d;S4QjM;NdMq;wA>T z7rS|YoZ3%${l~{joAv0=QPb}ub34{l zfRH_sN|OU2u%$zUS-Qct@WTVX7Dc?l zHuyT~->2(T_Pw@~Nw2oOvtiG5&nGD-Mn}07m&V(^VGGURs*-%6|_tVzL zWT}E($yOCk5l&4{Jx`%|&rebFTe?b&;Aw+GYJcH7VycYtmK3?oF-VeCN__vxr?Yo_ zDRJsRnX%$(+j=Tc0r|pD#gzXTqVfPlN%4wjf$s2>-#@rh_0#v5W0tuiQt=aC>zZft zm*uX38n4K0Mfkcky_9m-wZS=Eh8sf_PeVhdH z51rxyi%Xn%s>KhKT;mV{@TIE2n%6*W1k8O(a_awv!i66SFc^sT+5PtX-GVl}!y=cF z2JEgixOEN>f)d!GJjR_h!w#HTKOwRh+I`-6mctydW{hj%$nGtMDBwHZOtr^geFqs@ zCtNEFh5nt!>*TIrD7`@8ie#uUbGKTvyhMLzpX57^~2c}=R~u!Cgm1LUkpRz z;I>IZk)SV;sFm{LeI1tWUw-NsUh)`?#-(nTlE|~bLwhyAZlPce%pC^Pn>OCKe2;XD zS;G+dyr8jWSX?LnhEu?@u8kY|)M(gm49a7LL^kYs=k^2{z0f6>1`F;Uj(Y(WZWxYf zwshTwbMkO}8VM%l`)KaksJy)?FB2vf^jG#PQ!DxKw)!QF?szotn#uJRzg#cihFEe< zrg?}gWZN5r`<=?rnuNaE*q*G~&Zja%7v8bTk>V|dE`Q}+Z3G{eH zkMn4+8-ES2$b#BQcyBC!+uE3xaHC-QJ1nzD+iatw^V*K72Ap5-{A;}P*-zRNi1p|w zbM(L^Uf)=`B2D-i@>&Qm=4pJhkIfF2wE7$90BmPYMC4jMVGi=eo0-W%ZJEp)nXT09 zy$SnnEe+)9G3H&@vAU+-bEO;enDIzmt0mBh0$T?%eG|vJWhPnwYN^Rn~yO5f<-A_-ScWq$>vGL9^`Pf!}?3SHV$;36g;w` zX?^ZRx-E<{$@88QF>fZenRCZc>%&Arz5Dn~Z;^^#3qi;NPgiy%VU=`9hkODyYYUYCcGDsA)zYx3AS=I$v-u<5YAGo}Tq}x|3b+CAL z$RB9XdcW*!Nb{jO3@xH#KGd?k0@jh`CA6T z%XSiG-qiWA@F~OIZ)s>fuMry8w=peC;KhMWN0%F7XNWr$TThPEj#?J zbW#_A?$bs)7EIB;7H?9lj7How=BtHFI*=qIF7W%dn{0(S&fMh#N?pSyz?tx$de^W=B03EM}@j8>u;yvoxes z=$bL2Tu9{o&rptMqjcd^u$6rGJ+<4L(~p0PLFDGV zUW-0V`|KDPCxhioo|Mb9HjA1kdEClL5_*~$DKVnE`1sjQ4h_x$&MNTd(`HMDcJ>JLf8~OZq3;a)IgHhxZClbusnQ@OE$y$}1#u zZ(g{;25uKjw{0P2hEV3(Om}u=6ma z@r*x6hEP$4tOSoJkFU~cT}P{y79GIC?GS0*QMDg_j(Dz=0-0RtLZO4&gJhX{RCjGQ$5-F&9p4JO3%ZLp%Qvg?a0VA;nwr;`OELva zWW7%1#1x%@HtMu)HQ{#Ux8v5=vCKzOUBbSTgWHw}W^$U@xg<*nLDqW%2ouP-$U?zG zR>7{vg1bqqBL{=Ho)nFALL=%V7I51(@;Jv?Y)=jK*&Lc)eBv{nU@u;WqyCR*uWDEj z4L!PS(x`_#ht)Wk$*A5SM>=pVDK*}6O(Hdr1HnRu=!}aUL|An}`5Chc1y>MJ2 zBF|HgvGC&*Qrw#`VOu*7ZDo=rmg1jb#JCTz)~c zKGH7rxj~YxY~eV9mkmRxLz#m%J_v_@Col<`dMbfE6A+0yD7Se{+CRU`LhI?utXEHu z>_r(i|4AUl@`bS}XmUoJ={bbM8dUg=v2DggkNcqZc4&HhPT^0PDdvf5Kjsqowb1{w zal_@64nHPYOffiv9V)oupBreydu#V=&BqoG>gzWtr3*p4Q%_tkg-0OMwmO#AXu&}T zIe^zqT5j~5c66uxstzVrCO3>MyQF*xaC8YwH~_wse0(c#>N!oY=KlTjWxW`l#jZig ztB~NSLQ4_2_gYnA?6~DoHj|H2aAgVEelk+o-e*~uQoUHu$Ln?ueAMn%{Sxl;z^Z_- zElg#NuWZ%fjBtamhtxAQ4sjk?D)`rDk$4AaI-*Oe{uMpajXlBxo+v!Z2vJWk?!o!nQVs?Z&<;g- ztu{XTQS)oP2fI-$pB-DXuO{L1OCI&GaHQ_wmLH={ukph$h50aZWo!-5736(k*#;t_ z(>5E*mXY%h(B+C~km1%LegECnly^VMg1xq=sr$HHxP@#}_xgVUj5{AIvWO&HHj zS*^~ymuv+#SkD)~E7l?)r_){sZdU?z#C!=S4~VVDU$-iTIgMq}BlICO64K5;et0Eaw*%jZU8s|sEXI7du|O)>DK+`$r3h7989`kE63lBh29YqA zi}@Yb8(P?gLt1{43+yh=ni*Q8<{g~!(1SWu_JWe>K|MbdaEp!pO7xqj>%$Yhx*8+* zzqVws1I)`sLkbG}AQ3{t9y#I#tt4v~>E$4XUWEwlRyHC?@B1CyC1)a$k47;Z*n(OkI{74ABLE!KD2Rlz{Y7 z)UcesC+k-Jla4-*YC;_hu#4z0y6`0YuUHYr!rjTP{WJfLCiHUc&GG8fWGLK*!|T?A z@3Jz3eJg6$KVLb1okk6p!b*Ro>l>$jGpadlITOX-->xG%-z>N;>0gXtV-Vj;D;|TE zw*7`;T6s6nhO%WR;w6L&V*vn=Yw6a77NOB@Lo052xCVfI6*F1=`g>pSpGq@fFbxu`HJ%5`SI+-OqO~~iL6t1NOU{!=v zxtoE*Tl8)+j&bt*=R^Y_XwV+@G~iS1_PJFI6t3PgS1*y=K!Y5mjlrP(ChT|*s<Kcho{H?8UJ_2 zj0dzay;shLU1J?Hafb`%o-B6|NIi!hq;EPWW&v6Ja#a#KlE6W zFX9^bbAIS1!=hPEl3xg(tosjwF=n4)6?JDSlFxE3Bhe_d+GJE`u`-sx{bZtmW^YZq zZ9s$bKbPRZ%RdQarVEWj*kM`d{K2{nrt;VUhI0jnjyX9KNClH6u+n?K zSKpM^)4Xag4^Q3A{a!!B1<-Vfh zHr?!N_qrwG;WuWSn@SEPzp6S^HTWeh@*tGtT6}qz=9eZz7X}SnICEdITxh?s5>~52 z(WwdB&KdI1JD~03hvxu8S38C0s8Vy+kJ>GqPPzR@mf}ErWJr(u`95r)jcYeCep{u= zZk_gNlWdKDE5B~kfk=5FQ-1vo@DN$@=-&KPKK>ss65E+g3{=gl3cAI@B#^hhVC6N` zl(2WfU%p?U@xl9ZVODkR|2w$xkgB`woUMu|xnAsQ^f^#Mv~%#c&x*C3uA~HSu+)iy zOVc(=CGievjAt=vt#JA!Oe5zfrctah`FjhrEaE4q%>g+GV=bs-0hv%s2oB|rDqdbg z7!jHldLoU_qUs1MnPi7mvBl30ty28Cy%~X};PsPtDetp; z6NSp`g?4nB+cJb!Z6u?1D{NBLm9k92;Zg6bbX-%bNF`*{s(vA<51lts@Zi&&;VB_} zRLo5-IsYO7`C^yv;j^X$SWZW+TT}#WSY*e~TQ)nNI6Rh>X2Q^^>9u4fAwvk{8{e~L zT`Za}{3Jgm3MmvBP-QL3 z(PRdMh4!n3#=NLwW0<9xGN8WER*{Sq~Dm}9_73| zk2D{L@Yjo~?z^F`7t)*VZs(U)oYG)dQ`oe53x6z)oW(pMyod!4HY-H3vHyoo1W`MW z$Q_R1p#s#C?@Ofu?LQ_GPFr7y!J(Dl(Y+=T*98YG0ifil)GFV4YsB;X&rdh@` z2c#F}aiWUOm>yyEfY%M=g?>M`E=rP;oq`7fk6r_IopISYwE14E)fyFyMNSx-vC_IO zG2#7xi$93^;!UA8*3lx1&HCI+^W@~?TE5n82~5h|HXikXDbsU?y+7#xAQ@={w9{s*AndX?6GZsDn{vgE$x_d*v(42E3nnr$)BY^S4Zu;zn;s!B?HW`WA^ZMGX$Yr zWjzJ9xkVBUbp^=MBod?Q*QOV#UWy3WU4KC;4y$5N&sazIKZm*DbR!{1_y3FrLmF!- zH|1)bq4C6x^c_Km%YdPsQw-Dwd2p)7^{db@zF=u>&Q<_FVk{v0Yt#6|PU1y7(9v+N zgpm0tHStllaHln^Nuy+Otj9%#B!ly7Q4I8mFnMdE znXY2d=nm8fY?JK*i5{|A&QHkvtc6YM6AyozqZ#LMp#osiPDM=!)i1EA|2wE>e?SS;?*ZyyuqfMb0UK}rA z_tp^^Z6Odv{(S>g^_;gk*-w~2gMZJ(*>e&Rh9=Iv{IM6&0eJVCpLPxBN1hjYbZ_>( z7Mdsdpbb-5XWv`wMW85p7QqVnNF_&N{S{WkznewV`JLp+k{v4hsHYHECH@sJ&&Z>8 z|3d9vwkZ7Hf(8@Ye7vKwP5YA0DO#)G@V)8UEwcEzU6hvi=uXy)w8quv7VC2$)lebg zj*T8avu(f2=Y1q#RkZb**_swER!?*6+$OIQY4M%tvZQ|?Tz>QH38H={9r_6zCMy<5s6O9DqRBTq|2HA}Y7`W%1Q1b^i|#|(&e)qCpMBr1d+@%Q_M z*s4*hs9N-pBX;WpRzqi`?EW0oJ?*z)ZaXvRtDKCqk#+lPsY0^WZQ=PhLUcF1# z(T7vOhjaQJeMp?es;)><-kxiab4`txkXrV?k9BdkNei*2_mv;s+V4xZnUg#=H>E!{ zx-}~|OOO1+gj+rNaBG=2qNnw>Dbym#LGb0)CN<%DhByxOVwV4|qb5#uIb6Cl`x%R6 zK~0X&<5LhE-%y@fu=8@VYaepdwHd6~T}ZEZ%!aPWv|Bnb9)uhODp#7uh$DV|-K7@nTldEEV7mUhlJLh#hlQ%_e&DTf_zK+OS;5}AMju$7?qep z&-(TX!J&mbL@h2mC~say6kF!xqC_K9OAIj?7F7=lw7JlB@g==B`}5AmMIBccPKY=AuKStyMR_>>@5 z(53>2DFOgeE8%bVwzkU3Y1=H@UtV5@BOPax0qR=YN!{5KyE2&_Gd&T>J`i8VT`0ZeTdUgB#$+)#?d43uC zF!kYF883UDFC(@$5wd*156feGmkRj1PL|-g>QZ95%deiF5+xA=Z-d*Spv4LzT93aS zW1hK=zW0s&S*h@TVW6$`*Xem+ z*f{)YFlR2w)DvCE3Ff9=o>=6yvW_9%>}}6g0{b%$lQE`EwqN(l9_tft7*CVmn0B({ zxokDC3OGIZAH2I7?S{iy)65_Bny^*h4=-S3%KP!F<%yp-6a>nHV?9eYAMkpVc{mMw zW9ECxHPPC@=7&QRxW3Q%H$5xEuOptGr<|}o z6rd{1jMyPsvG$*#_Nc(qg)1z{7T#SJyfLH<64?kHB(7%^%>>5NSro9A(ER5Luj(m?vnKQ zLrQ4Vn+zjjua&MG8}9C-?euL3{&=Qi#`Kk%iU~8)E~$66qDI;zz44t{LjuLp!FdV= zd4N=$nT_UUJuFZzYgPi0Fr4vi9OuTR7et5UvT6Xxpynci@I1RBw_%X~T6tZUpVv)i zgiC_ZNtIp5{O@1F?>eAraj%oF5|FfCp9l%RK^w0{;~>Xu-`!}lZpqo)5PZ~N6J zX0iVYWt$GwDQ+WrdhO{M;OG>wnc#%Ra$poT$I4LlesLT>_eiM8*UD=ASkD4Vnr!3l zwMLluGXuUMO#`2pmi|0RPx30Hhbyk`O(Yl=8yVD?gl^j9s^*xW`Ag!OoBT;NAMA_$ zRtWfg>&e39?;$A5W40vst%{XeqeR8S6;x8Bg}*G){AW96f?{5{bGa%{3|85J6f=8U z_D{SQcwXPhn<^bbDG;^))Icz$%j=^SXL=f%E^1%d&)ahy-Sq99QNq`m)Q~@j^K+l9 zyKI^S=;){zy!`ff=m^~mwK#q1KA^GgX>}cBV&8U5(Pr-l9zB06eYJE`6)fRg%#jZy z9Qy%WMW+J{wkhj29U6{t>_E7RkYN?O)Uz7q-(T)&%;HEKv?9La!efW|!!vYWt&+Zn zoujAbxl2sjc+fy3Tard+GMYbZxu)5(*JFL|{^;5$u#D2RhS7*P?CL_>QYF&K&74+h zDx^sOvJ(Rywkvw6$u$pJG9_+vwnd%Xl=;NS%zv_|bLbgsOhj8;`&W?Gh8~hJ62EI< zVJyH*6D)N=P}X zuz;9E zHKMnu5rn9#OLVL6Dyv5eV%3NeqDzR?d(>d}M~D`6LzESr=s^Vk$;bD@`)NPSb!K*E z&Y9~u&-2{(lm4dky$#`RdFbVt+DuAV3f=BG|3H>)sk8;Oz#Va7g zfD^eO;qB>LB73uiJT#UIV^_`hD~zqX{M+{>g7YtnUuGB`t|LAFrcT^7uDW21O9?hP zb+X>3=O@9f>?V0s4c*XR-&Pz&azx2hs=-F;ssS&J}m`J_DjUry|$ zAk$;9X&O|wt_?NLl(aTVL4KbR_2sBT@cqWFAKJq~Sd=c1fzxt2hXmaKqg>zTTUqb* zE~TahBl`^H(|xZ(>*4Jz6N;Y;_}iwmDlcHPdtWT{5&;!oiel2p=+$db{vr71I?*4a zH7VN7L>BDLV;JVDbu)Z>`n&my<89nl`uo zMqRmarF#YZN({}&@f?+}+g2x9wW}@$XvTWXXQp1^E1uQHOo|(yQR`YmRCzx3vwdKy zgdn`(N(T~IN~FvCOQB_?nhN7YDv@Ei?}z6{JuA3z$Ud)${>eS$^tv6ClUV3&*7+&V z#{1Yg6Ux(=xvDRsRmBoi1>gs~%UoGt_RU8|iw&^QkyO=Hu8@P(pV%6?SfXkAqIS5q zBbYt9IrR%)^vjiyyNb|g4=E^P9T?$Z%J!gQX z5{|-asV4*rX&S6xCudk&d{rqtw}))C2HAk$Fn_E&`eP;6|%5YZ&1fkToict49mFoW}2=Mvms0+pP)XqPu9A^PVP8T;X1qY zsB|Jiam3a%%m8HbvP24OM4~ZtDU{^OX6@FS$qW87g^|a}p01@($hjY}gqfV(sA(BX z#7WfrusN@t)_E=#6Mg&^VK9N>#4P90VTP-U>7cLkHmCIQvBCGV+Ww?GadAYNz!;&^ z7&ld_GCi`v0HhC0n17<+&bQWATK9r&$tk}4V%Vlhvi|CGt#_O~oc4ZUJh?QCP%bxP z>t44#?*g5S=O7?+W6|iDvg*u~)N_c=*GSsA1FGDuvnHYCD2P*BndM<%CBsilR%1r!-xj#{6*JEzM`W+2nV3{FHHo|-Y#C6MM8W@vKpkh@yVh0uaY0|$E{ zcTHKPED+YR+)>A?WY+$7eA>M3HJ+t22|zOL)p}x?L(#kx;m~AfiU4%v6YBhlLbUno zs{HZP(ex{!uBxk$d=0pWaOsjeDM%)?+Mey5^l~^27rrcey0T9qms90&L^w@We^XPf z#IdaZi*o^%-vk!fCxs6Hqedc%17Z*_*DEPx#B>h?y-?F~O{-wpvpldvP1eb#jz=P> zaa&^8Ijr|a%QC|`hJVWY6bjr=sFdo`FTg~uKC{8)>HbM3`Rz=P9i6PcgLX(GV{~*k zcozdbZTip2P_t`-i7i1pQxh!=5$AlqQX#E5WYHFo(3p?C+^ zD3wVfA?@V0TIeCTdW%b=g$#1zA;a}Y<@TFlx4*&?{97OCb|a02p43Svueo~Fy$qIT z9+>^yQbOv%7k_~o9Wz7!wd_#6^e3ZamQ5jF(}wh$-(Y#bCNrg`^=C83{RO?5qYa_s zW13yXqX-?=zr81`H5+JC<&TlQd%Ou04!nhR6QX&-(aEhPfh1DXYXeA;;oJch{?sZ0 zFS_a~f?ums4rDxM;^CFQWu-X_esmrCSl5Ltaa{&-tx8iM|7+hGxP)_^dw zPp2Hvh!F_!C_`tID(Hmffu)~>D68Hm|JDBBG*==?WdAmV$ZFyJ+mL2UFYM?8eI$xD z=&33cta%6E$>pwoIOU3Q#+rt|kNmrGXx9Fmv(R7Oo=vz!KhQ@i!K2*V=J+FPu1>i5 z=wAiRaqe0mwa6k*xqe6wV`bg>)GeQH*%)6i#mD`MM%7&_b@!e&j5BGl`L;+xXh(#x z%x%sEp1ZVDap?FRSrUuQ7gEj10{L8BaS$l%#C7yFq+0zy!PJ-J^)-1UbjXQyG~(ef zt69o3>+*G+<;*y1MtTpaqqB;ozK*nKa3d-)p00`#zm@aCf-NQ^qSF7nezST5XNkT~ zx$?tb5|b`reIt`wU?z|re;+>xg+&ziLez~vG*3+GsCiajoiOx^IUmo>V4k77lgA<= zSBxMs_AprHZzGpx1{1ONL$hbi@c&R^^T!iIZ7mAC_=`>DxPxYu+uRyBS8tq~z`}t3 z1WVYNY17aRR`FZ?Ix6`Jf&Jym*5+Ic+C0?hcFzPC*6ZON6KeM7RaVGA%}~tL+XlgJ zi<f(F$io;rh49G7Aj(MaSxI>zC2#k zYPU}QD0GQvM{~-FNshPAUd}zJSY(VN+iFLSt?Qj!qCrYYTw#wyWtubB#-uqUbvHI( zh_;IYkBPO}?-9)?l}ru46`F8w&OK&+sKQBi;L$7H1l?ioejV~SlWR{)rGX(Tqtt%o zF=N8o_h;S-2{Hy@bIzf^r&R3V&Vit^i$k@s3B&vIub96nM^{;l)mhT_pAzs}3ZVJr zGyUxAD2z`aFQxu;M&1WX1-*yxSEC{|AD!lV4Zxw%vJ;>HjYpPml6Ia`_k29X@_m)lZ^`mqhI6;PmmIoNR$Ccn8Mz8wLaJ11j zirMw^SULz%0!ueQgNiC0pxbdR3BJZ1=`fX;uqTN$(li41oi`=*p%7J$n}7yuC;WM``pd@EQX zOo}r?;`ezbn8GOP?kifqrAm|;o*^r%vA52d)%z8x+L$19ZJN7NO0WP369eMiQLZco zw_Eap@$J4}A`X)uEv;*wEHhhH?G{B2ItOzg;eYK(hXbfHMXdbUzqJwotkiO8qKHcM z)#uk0+hs?shJ9BfbNIcJz1XY?I;!#$QgMn6C4b|&8vHbExBd4<`S=U-U3i-Z+%C*( z^dAaYVwg1@@S4ct$$UR!VcudMs%3L=MlfpUDZ05;Ai#v7vGV(00VWnhj{7$rn&euG zJu3Af0wgsVJWV>y9zcz1Px_6qO+PynCVE9^aAnJnDOG+O+*w3HpmN$BXv;)Js@Mj> zTmNoM)_lYf3HDToe+rUOTLMs^5K6xpW>^fWMH#(k*L*qv)A0)I>d6`2D$#?Vo}{Rd)zgf z|3X101v0niQ+I?207*Wz9oU2}0&>ybRDLRfTxzppMUrj(82)`ZwQ*@-v_160M5bLY zec!a{3#?5vJBN$G)*0lDMU= zyCNNSnI-831q=WAbV7d=vmFb4bkEu#I%6;DXdv`L#V6{eP$BLzJd%M@#VekzU7w}8~AZA_Ouly%6@}tM($4c5pF_Y&4M}PF^}khN5wGP+HL|QKv)fi-U{|%yStS9 zEHnuMo$1}1x%go`V|a`JCocCRxs+((^u#!-Vqx^|Hr4u$wXFxskSM=Ail1VL zoEgewN*A9tpt=c+v5jk)$z}Cn%oGC}GcO%;K_7~XRND;TZ1`h+IY2ybqZaJ-dHWsn zTHeINMM{YU7^?&uJ#qx9^KCjT|4tgaxV!t^R*FM3Dm5H>fesLp;?B-MZd!bzz(F`} zTb1rV&5ceFdQH?3&RXk5d=7ba8nP9$o89M&ha=ihO{+L9N~pY9LxZG8YH-0(ylGd} zZ&||`(|^>kt6t=e@cM&C+=uB{Z$p0OjyiJB-AXUX873*7Vhr-SPLlG69cc6imK7PgQW+zxglj z=P=3jFxJ-zW7JGH!ofNGT01`=HYOi_##w}N+tEhKNeAx8PCzX+qcQI8Hp*M^5az%^wOzq<73|4L-+YQ5X)b8HMx&H4 z7m9k7;tKy%IGVpD-)u1f5sFW%0!)ZMrM|<}(S12pw7JvJRLhUqouc}&?$^g%)PxJOZ==BK&>u4hdj&HFREoF;Oy`fcF7oqVyt}vDKBi*@tF2u+eh|PH zk2q@%g7IEn8=stZLF7FKOwm1)i=dQYJQ@IAzAP?MM)-B7PF$pvwVRba1{N8_#?}|( ztxy;7{F|fs0iP_wm@uR7!gf5?oi?QaKnw!6HX8qYJde&d3xUYLyAN)l!T#F_uC4J( zaLsh6gPDmedN%$K)udebC83plW6I1cu4<4@ve^Vhs|96HkyAHnIn3}+Hjc4%ZTd%~b( zo|)AmS8ecEnGU<0_9mJTh#o&`iX*i!rHy&h_j$IBM1cAIMv0}*_nQPYhl8FU}PUFORT3JO-3Y6R5gEq2@| zewsf307-9RoHp&xKcaum7?!{I#hg_HR**^&)mnqn$e>8JQu4!=DLppIpvSZ&J8a#7 zT2BVG1tIQ~AcxF#4?fl-4WBLYK@Z0XIC1H8816aDfz68XFF~i|oJKMg;SKbXl~&l;`MuI%$sszLj3VJ0b5<#VV+hxs81Y`%OC z$~H&-i6-CBU%!8MPNb2dhvpPi=D!OCsS}HTkAqFUcecxNP~gV3a2IMos*P<@2LINr z&s1`3BUuw1OTFfxc+#8ZoU$aT=DyQze5_l;f;k8gGbkj?_nLxDezbpS zK>*Jkj0+J~3Mcma)<>mqUKRpPnd??KZ530)%FH&Yp$^cEWap2B6+S@IUjZ7k{$>duaJrcXmp6jjl_6g;=D4>k;%#+)>i84i*fyHVgf>N$B(0e~fgKg?6+#z+939Z$wWtF7yMnu)m>0i$zN3o$5Q6(L5XVg{r)ta+4o z2PK-CA>lj=LRY53oB6Zm;O!K8+O;b(eoR91^z_h`p+ykxJpzb?Arl9(qpB_J2%fGj zF1Z6-Fn|U90PCw2fg7gUGe4{=K56B0zWzJbrL}mDgr^8l%}jU;gB>5877xK|rZT1N z@EmOMt2Q{UI$(!+Ttl`;x6u9kua|mohSz(}mwCSEFC7y;?OV Date: Fri, 10 May 2024 13:38:14 +0200 Subject: [PATCH 4/5] Fixed vocab and grammar for Operating System and Virtualization (#10263) Co-authored-by: wereduk --- README.md | 46 +++++++++++++++++++++++++++------------------- 1 file changed, 27 insertions(+), 19 deletions(-) diff --git a/README.md b/README.md index 41d9aca0f..6c2a4a482 100644 --- a/README.md +++ b/README.md @@ -741,22 +741,22 @@ It would support the following: * Program's code is loaded into the memory or more specifically, into the address space of the process. * Memory is allocated for program's stack (aka run-time stack). The stack also initialized by the OS with data like argv, argc and parameters to main() * Memory is allocated for program's heap which is required for dynamically allocated data like the data structures linked lists and hash tables -* I/O initialization tasks are performed, like in Unix/Linux based systems where each process has 3 file descriptors (input, output and error) +* I/O initialization tasks are performed, like in Unix/Linux based systems, where each process has 3 file descriptors (input, output and error) * OS is running the program, starting from main()
True or False? The loading of the program into the memory is done eagerly (all at once)
-False. It was true in the past but today's operating systems perform lazy loading which means only the relevant pieces required for the process to run are loaded first. +False. It was true in the past but today's operating systems perform lazy loading, which means only the relevant pieces required for the process to run are loaded first.
What are different states of a process?
* Running - it's executing instructions -* Ready - it's ready to run but for different reasons it's on hold -* Blocked - it's waiting for some operation to complete. For example I/O disk request +* Ready - it's ready to run, but for different reasons it's on hold +* Blocked - it's waiting for some operation to complete, for example I/O disk request
@@ -768,19 +768,21 @@ False. It was true in the past but today's operating systems perform lazy loadin
What is Inter Process Communication (IPC)?
+ +Inter-process communication (IPC) refers to the mechanisms provided by an operating system that allow processes to manage shared data.
What is "time sharing"?
-Even when using a system with one physical CPU, it's possible to allow multiple users to work on it and run programs. This is possible with time sharing where computing resources are shared in a way it seems to the user the system has multiple CPUs but in fact it's simply one CPU shared by applying multiprogramming and multi-tasking. +Even when using a system with one physical CPU, it's possible to allow multiple users to work on it and run programs. This is possible with time sharing, where computing resources are shared in a way it seems to the user, the system has multiple CPUs, but in fact it's simply one CPU shared by applying multiprogramming and multi-tasking.
What is "space sharing"?
Somewhat the opposite of time sharing. While in time sharing a resource is used for a while by one entity and then the same resource can be used by another resource, in space sharing the space is shared by multiple entities but in a way where it's not being transferred between them.
-It's used by one entity until this entity decides to get rid of it. Take for example storage. In storage, a file is yours until you decide to delete it. +It's used by one entity, until this entity decides to get rid of it. Take for example storage. In storage, a file is yours, until you decide to delete it.
@@ -792,26 +794,28 @@ CPU scheduler #### Operating System - Memory
-What is "virtual memory" and what purpose it serves?
+What is "virtual memory" and what purpose does serve?
-Virtual memory combines your computer's RAM with temporary space on your hard disk. When RAM runs low, virtual memory helps to move data from RAM to a space called a paging file. Moving data to paging file can free up the RAM so your computer can complete its work. In general, the more RAM your computer has, the faster the programs run. +Virtual memory combines your computer's RAM with temporary space on your hard disk. When RAM runs low, virtual memory helps to move data from RAM to a space called a paging file. Moving data to paging file can free up the RAM, so your computer can complete its work. In general, the more RAM your computer has, the faster the programs run. https://www.minitool.com/lib/virtual-memory.html
What is demand paging?
+ +Demand paging is a memory management technique where pages are loaded into physical memory only when accessed by a process. It optimizes memory usage by loading pages on demand, reducing startup latency and space overhead. However, it introduces some latency when accessing pages for the first time. Overall, it’s a cost-effective approach for managing memory resources in operating systems.
What is copy-on-write?
-Copy-on-write (COW) is a resource management concept, with the goal to reduce unnecessary copying of information. It is a concept which is implemented for instance within the POSIX fork syscall, which creates a duplicate process of the calling process. +Copy-on-write (COW) is a resource management concept, with the goal to reduce unnecessary copying of information. It is a concept, which is implemented for instance within the POSIX fork syscall, which creates a duplicate process of the calling process. The idea: -1. If resources are shared between 2 or more entities (for example shared memory segments between 2 processes) the resources don't need to be copied for every entity, but rather every entity has a READ operation access permission on the shared resource. (the shared segments are marked as read-only) -(Think of every entity having a pointer to the location of the shared resource which can be dereferenced to read its value) -2. If one entity would perform a WRITE operation on a shared resource a problem would arise since the resource also would be permanently changed for ALL other entities sharing it. +1. If resources are shared between 2 or more entities (for example shared memory segments between 2 processes), the resources don't need to be copied for every entity, but rather every entity has a READ operation access permission on the shared resource. (the shared segments are marked as read-only) +(Think of every entity having a pointer to the location of the shared resource, which can be dereferenced to read its value) +2. If one entity would perform a WRITE operation on a shared resource, a problem would arise, since the resource also would be permanently changed for ALL other entities sharing it. (Think of a process modifying some variables on the stack, or allocatingy some data dynamically on the heap, these changes to the shared resource would also apply for ALL other processes, this is definitely an undesirable behaviour) -3. As a solution only if a WRITE operation is about to be performed on a shared resource, this resource gets COPIED first and then the changes are applied. +3. As a solution only, if a WRITE operation is about to be performed on a shared resource, this resource gets COPIED first and then the changes are applied.
@@ -825,24 +829,28 @@ The kernel is part of the operating system and is responsible for tasks like:
-True or False? Some pieces of the code in the kernel are loaded into protected areas of the memory so applications can't overwritten them
+True or False? Some pieces of the code in the kernel are loaded into protected areas of the memory so applications can't overwrite them.
True
What is POSIX?
+ +POSIX (Portable Operating System Interface) is a set of standards that define the interface between a Unix-like operating system and application programs.
-Explain what is Semaphore and what its role in operating systems
+Explain what is Semaphore and what its role in operating systems.
+ +A semaphore is a synchronization primitive used in operating systems and concurrent programming to control access to shared resources. It's a variable or abstract data type that acts as a counter or a signaling mechanism for managing access to resources by multiple processes or threads.
What is cache? What is buffer?
-Buffer: Reserved place in RAM which is used to hold data for temporary purposes -Cache: Cache is usually used when processes reading and writing to the disk to make the process faster by making similar data used by different programs easily accessible. +Cache: Cache is usually used when processes are reading and writing to the disk to make the process faster, by making similar data used by different programs easily accessible. +Buffer: Reserved place in RAM, which is used to hold data for temporary purposes.
## Virtualization @@ -850,7 +858,7 @@ Cache: Cache is usually used when processes reading and writing to the disk to m
What is Virtualization?
-Virtualization uses software to create an abstraction layer over computer hardware that allows the hardware elements of a single computer—processors, memory, storage and more - to be divided into multiple virtual computers, commonly called virtual machines (VMs). +Virtualization uses software to create an abstraction layer over computer hardware, that allows the hardware elements of a single computer - processors, memory, storage and more - to be divided into multiple virtual computers, commonly called virtual machines (VMs).
@@ -892,7 +900,7 @@ Yes, it's a operating-system-level virtualization, where the kernel is shared an
How the introduction of virtual machines changed the industry and the way applications were deployed?
-The introduction of virtual machines allowed companies to deploy multiple business applications on the same hardware while each application is separated from each other in secured way, where each is running on its own separate operating system. +The introduction of virtual machines allowed companies to deploy multiple business applications on the same hardware, while each application is separated from each other in secured way, where each is running on its own separate operating system.
#### Virtual Machines From 358cfa2072d70bc16c6748d01ec374ccda463347 Mon Sep 17 00:00:00 2001 From: Bhushan Sahane Date: Fri, 10 May 2024 17:08:26 +0530 Subject: [PATCH 5/5] Update README.md (#10261) Fixed Ceph --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 6c2a4a482..16f3f630d 100644 --- a/README.md +++ b/README.md @@ -3910,6 +3910,7 @@ A programming model for large-scale data processing
Explain what is Ceph
+Ceph is an Open-Source Distributed Storage System designed to provide excellent performance, reliability, and scalability. It's often used in cloud computing environments and Data Centers.