Agenda: final-exam.txt

File final-exam.txt, 1.5 KB (added by damas, 5 years ago)
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1                      Linux System Administration and IP Services
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3
4Final Exam
5----------
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71.) Which key should you apply a passphrase on? (Check one)
8        - Public key?    [  ]
9        - Private key?   [  ]
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112.) In our classroom what was the IP address of the authoritative nameserver for
12    the ws.nsrc.org zone?
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153.) What is the best operating system to use to provide core Network services such as
16    email, web, DNS, etc
? (Check one)
17
18        - UNIX     [   ]
19        - Linux    [   ]
20        - Windows  [   ]
21        - Other    [   ]
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234.) How many usable IP addresses are available in a /24 network?
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265.) If you have a subnet on your campus that contains 126 usable IP addresses what is
27    the netmask for that network? (Check one)
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29        - /24 (255.255.255.0)     [  ]
30        - /23 (255.255.254.0 )    [  ]
31        - /25 (255.255.255.128)   [  ]
32
336.) If you have two 100 Mbps circuits, which are:
34        a.) 1 km of optic fiber
35        b.) Via satellite with a distance of 30 km between the base and the satellite
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37    For two packets of the same size which will have the larger transmission delay?
38       
39        Circuit a  [  ]
40        Circuit b  [  ]
41        Neither    [  ]
42
43    Propagation delay?
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45        Circuit a  [  ]
46        Circuit b  [  ]
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487.) What command can you use to find the name servers for a sub-domain? (Check one)
49
50        dig  [  ]
51        top  [  ]
52        bind [  ]
53
548.) In order to connect and authenticate to a remote machine using SSH without using
55    passwords what  type of cryptography are we using?
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57        public / private keys [  ]
58        symmetric ciphers     [  ]
59        hybrid systems        [  ]