Linux Essentials 2.0 Chapter 14 Exam Answers

n n 0C ap er 1 4 Ex am A sw e LLiiinu in nux u ux xE Essse en nti ntttia ial alls 2 2...0 Ch ha p pttte er 14 xa am An n nsw wer ers rs s 11 Wh of th fo w u 1. W hi hiic ich cch h of the ffol ollo ow wiing in ng gw oul ou uld ld db be e ccon ons nsi sid ide der ered ed dah host st st? t? wo ho A printer attached to the network via an IP address A network cable A CD-ROM The computer’s hard drive • • • • 22 … 2. A sse erv errrvi vic ic ice e iiss… …like an IP address. …a file that contains configuration information. …another name for a computer’s hostname. …a feature provided by one computer to another. • • • • 33 ettw w ork p ntai 3. A n net ne work pac ack ck cke kett cco ont ain aiin nss … pa (c h ttwo (cho ch hoo oos ose se tw w wo o)) …the IP address of the source machine. …a hard drive partition. …the name of the router. …the IP address of the destination machine. • • • • 44 sse e 4. On Onl nly nllly y ser erv rv rve ver ers rs h hav ha ave ve eh hos ost osstn tna na nam ame mes es. ess. ho Tr Tru ru rue ue e orr Fa Fal als lse sse e?? True False • • 55 wiing ho 5. Wh Which icch ho off tthe he fo fol oll llo lowin n ng g pr pro rot oto toc oc oco col ol ols ls de de efffine in ne e ess h how wn ne net e etw two wor wo ork rk co nccti com omm mmu muni nic niica catio ion on n funct ti tio ion on ons ns ns? s? DHCP DNS TCP/IP SSH • • • • 66 off tth 6. Wh Whic hiiich ch o h he e ffol ollo ollow owing ga arre v val a ali lilid d IIP IPv Pv4 v4 4a ad add ddr dre res ess ss sse sse e esss?? (c h ttwo (cho ch hoo oos ose se tw w wo o)) 192.105.10.10.2 192.301.25.25 10.33.55.77 192.105.10.10 • • • • 77 the ffo ccom m d ay tth 7. Wh Whi hic ich cch ho olllo llo low owi wi win in ing ng g co omma mm man ands dss w wil ill illl di dis isp sp pllla ay the he IP a add ddr dre re res es esss o on na off the Li ux sy Lin inux nu ux sys yst ste tem te em? m? ifconfig dig route ipconfig • • • • 88 e ffo co n diispl b 8. Wh Whic ich of th he fol ollo ollow owi win ing com om omma and an nd nds ds wi wil illlll dis p pllla a ay y tthe th he e ro rou out uti tin ing ng g tta a ab ble? blle? (c h ttwo (cho ch hoo oos ose se tw w wo o)) dig netstat -r ifconfig route • • • • 9. Which of the following commands will all allow ow you to log into a remote machine? • dig • • • netstat route ssh 10. What option to the netstat command has information shown as numbers rather than names? • • • • –name -r -t -n 11. Which of the following commands will all allow ow you to log into the machine server1 with the account name nick? • • • • ssh nick&server1 ssh nick-server1 ssh nick@server1 ssh nick->server1 12. The RSA key fingerprint allows the dig command to connect to remote systems. True or False? • • True False 13. When looking at the primar primary y IPv4 configuration file, if the device was configured to be a DHCP client, then the BOOTPROTO value would be set to n none. one. True or False? • • True False 14. When issuing the service network restart ccommand, ommand, whi which ch of the following occurs? • • • …brings up all network interfaces, re-reads all related configuration files and then the networking for the system is restarted. …the networking for the system is stopped and then started back up. …takes down all network interfaces, re-reads all related configuration files and then the networking for the system is restarted. 15. Which of the following files contains the IP addresses of the name servers the system should consult in any attempt to resolve names to IP addresses? • • • • /etc/nsswitch.conf /etc/resolve.conf /etc/hosts /etc/resolv.conf 16. Which of the following commands can be used tto o display socket statistics, and supports all major packet and socket types? • • • • ss ifconfig route top