1 | Linux System Administration and IP Services |
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2 | |
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3 | |
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4 | Final Exam |
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5 | ---------- |
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6 | |
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7 | 1.) Which key should you apply a passphrase on? (Check one) |
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8 | - Public key? [ ] |
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9 | - Private key? [ ] |
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10 | |
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11 | 2.) In our classroom what was the IP address of the authoritative nameserver for |
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12 | the ws.nsrc.org zone? |
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13 | |
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14 | |
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15 | 3.) What is the best operating system to use to provide core Network services such as |
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16 | email, web, DNS, etc� (Check one) |
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17 | |
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18 | - UNIX [ ] |
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19 | - Linux [ ] |
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20 | - Windows [ ] |
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21 | - Other [ ] |
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22 | |
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23 | 4.) How many usable IP addresses are available in a /24 network? |
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24 | |
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25 | |
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26 | 5.) If you have a subnet on your campus that contains 126 usable IP addresses what is |
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27 | the netmask for that network? (Check one) |
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28 | |
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29 | - /24 (255.255.255.0) [ ] |
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30 | - /23 (255.255.254.0 ) [ ] |
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31 | - /25 (255.255.255.128) [ ] |
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32 | |
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33 | 6.) If you have two 100 Mbps circuits, which are: |
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34 | a.) 1 km of optic fiber |
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35 | b.) Via satellite with a distance of 30 km between the base and the satellite |
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36 | |
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37 | For two packets of the same size which will have the larger transmission delay? |
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38 | |
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39 | Circuit a [ ] |
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40 | Circuit b [ ] |
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41 | Neither [ ] |
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42 | |
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43 | Propagation delay? |
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44 | |
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45 | Circuit a [ ] |
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46 | Circuit b [ ] |
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47 | |
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48 | 7.) What command can you use to find the name servers for a sub-domain? (Check one) |
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49 | |
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50 | dig [ ] |
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51 | top [ ] |
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52 | bind [ ] |
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53 | |
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54 | 8.) In order to connect and authenticate to a remote machine using SSH without using |
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55 | passwords what type of cryptography are we using? |
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56 | |
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57 | public / private keys [ ] |
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58 | symmetric ciphers [ ] |
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59 | hybrid systems [ ] |
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