Practice Quiz

CompTIA Network+ Exam Review - Question List

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11. David has configured his company’s ISDN link to use CHAP authentication. It worked well for a couple of weeks. However of late, the line drops very quickly after it comes up. David wants to check what the error could be. He decides to debug the CHAP process. Which command should he use?
  1. debug chap authentication
  2. debug ppp authentication
  3. debug ppp chap
  4. debug chap encryption
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12. In an ISDN link, a router dials another router to establish a connection. What is the traffic that enables this dialing process called?
  1. Access-list traffic
  2. Global traffic
  3. Interesting traffic
  4. ISDN traffic
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13. Which of the following RJ-45 cable types is used to connect a PC’s COM port to a router or a switch console port?
  1. Rollover cable
  2. Straight through cable
  3. Crossover cable
  4. Crossover with a CSU/DSU
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14. Which of the following protocols use both TCP and UDP?
  1. FTP
  2. HTTP
  3. DNS
  4. SMTP
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15. What is the maximum number of hosts that can reside on a subnet with 255.255.255.192 as the subnet mask?
  1. 64
  2. 62
  3. 30
  4. 14
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