Answers A/L ICT Competency-8 Model Questions

7/27/2015

A/L ICT Exam preparatory seminarr-2015 Zonal Education Office - Kalmunai

Nju;r;rp 8 tsg;gq;fL P kw;Wk; juT> Fuy; vd;gtw;iw nraw;jpwDs;s tifapy; njhlHghly; nra;tjw;fhf juT gupkhw;wj;jpdJk; fzpdp gzpg;gpd;dy; njhopy;El;gq;fspdJk; gad;ghl;il Muha;thu;.

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7/27/2015

tpilfs; 1. i. A: Ftpak;(Hub)/khw;wp(switch) B:ghyq;fs;(Bridge) ii. a. topg;gLj;jpfs;(Router) b. gpujpepjpj;Jt Nritafk;(proxy server) c. jPr;Rtu;(firewall)

2. ai. guhkupg;G nryT mjpfk;. ii. fl;likg;G rpf;fyhdJ. iii. juTg; gupkhw;w Ntfk; Fiwtilayhk; iv. tiyaikg;ig tp];jupg;gJ fbdk;. b. tFg;G C 192.168.10.0 c. Ftpak; ghyk; d. 27 xd;Wfs;: 11111111.11111111.11111111.11100000 tpUe;Njhk;gp gFjpapy; cs;s 1 fspd; vz;zpf;if= 3 / 23 = 8 cgtiyfs;

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3. i.a. Amplitude Modulation (AM)

Frequency Modulation (FM)

Phase Modulation (PM)

b. Amplitude Shift Key (ASK

Frequency shift key (FSK

Phase shift key (PSK

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ii. a. xNu

ghijapD}lhf xNu miytupir nfhz;l juT kw;Wk; xypr; rkpq;iQfis gupkhw;wk; nra;a trjpfspid toq;Fk;.

b. Neug; gpupT gd;ikahf;fk; A, B, C vDk; rkpq;iQfshdJ xU ghijapD}lhf xU Fwpj;j Neuj;jpy; mDg;Gtjhf ,Ue;jhy; gpuahzpf;Fk; NeukhdJ mr;rkpq;iQfSf;F ,ilNa gfpu;e;spf;fg;gl;L mitfSf;fpilNa ve;j ,ilA+Wk; tuhj tz;zk; tpj;jpahrkhd Neuq;fspy; xt;nthU rkpq;iQAk; mg;ghijapD}lhf gpuahzpf;Fk.;

4. i.a. CSMA/CD (Carrier Sense Multiple Access with Collision Detection) CSMA/CD MdJ bus ,iztpapy; gad;gLj;jg;gLk; xU cld;gL newpKiwahFk;  gupkhw;wj;ij Nkw;nfhs;sTs;s fUtpahdJ Kjypy; ghijapd;(Channel) eltbf;iffspid mwpa eltbf;iffspid Nkw;nfhs;Sk; ghij gad;gLj;jg;glhJ ,Ug;gJ fz;l ; wpag;gl;lhy; kw;w fUtpfSf;F juTg;gupkhw;wj;jpy;