CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 391:

  Which of the following technologies has more non-overlapping channels to utilize in a wireless LAN?

  A. 802.11a
  B. 802.11b
  C. 802.11i
  D. Bluetooth
  A. 802.11a

• Question 392:

  An administrator is using a packet sniffer to try to determine what is causing the traffic on the network. The administrator sees a lot of packets on port 25. Which of the following traffic types is MOST likely using port 25?

  A. SMTP
  B. SSH
  C. DNS
  D. TELNET
  A. SMTP

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  Port no. 25 is assigned to smtp as documented by iana.

• Question 393:

  A Linux-based workstation is unable to connect to an IP printer on the same network segment. The printer IP address settings have been verified. How would a network technician verify IP address settings on the Linux-based workstation?

  A. Run the dig command on the workstation.
  B. Run the nslookup command on the workstation.
  C. Run the ipconfig command on the workstation.
  D. Run the ifconfig command on the workstation.
  D. Run the ifconfig command on the workstation.

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  The "ifconfig" command allows the linux/unix operating system to setup network interfaces and allow the user to view information about the configured network interfaces.

• Question 394:

  A technician suspects invalid information in the local DNS cache of a workstation. Which of the following commands can be used to clear this?

  A. nslookup
  B. ifconfig
  C. dig
  D. ipconfig
  D. ipconfig

• Question 395:

  Which of the following does Kerberos use to authenticate?

  A. Tickets
  B. Servers
  C. Users
  D. Clients
  A. Tickets

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  Kerberos keeps a database of its clients and their private keys. The private key is a large number known only to Kerberos and the client it belongs to. In the case that the client is a user, it is an encrypted password. Network services requiring authentication register with Kerberos, as do clients wishing to use those services. The private keys are negotiated at registration.

• Question 396:

  When troubleshooting a connectivity issue, which of the following commands will give the technician a list of the host names connected to the network?

  A. ping
  B. nbtstat
  C. arp
  D. msconfig
  B. nbtstat

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  The Nbtstat command is a great command to use when you need to display the NetBIOS over TCP/IP protocol statistics. The Nbtstat command can also be used to display NetBIOS name tables for both local and remote computers.

• Question 397:

  Which of the following is used to explain guidelines for users while using network resources?

  A. Network cut sheet
  B. Baselines
  C. Acceptable use policy
  D. Regulations
  C. Acceptable use policy

• Question 398:

  An advertised route learned from one protocol over a different protocol is called:

  A. Co-location
  B. Reallocation
  C. Redundancy
  D. Redistribution
  D. Redistribution

• Question 399:

  A small office has created an annex in an adjacent office space just 20 feet (6 meters) away. A network administrator is assigned to provide connectivity between the existing office and the new office. Which of the following solutions provides the MOST security from third party tampering?

  A. CAT5e connection between offices via the patch panel located in building's communication closet.
  B. CAT5e cable run through ceiling in the public space between offices.
  C. VPN between routers located in each office space.
  D. A WEP encrypted wireless bridge with directional antennae between offices.
  C. VPN between routers located in each office space.

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  A VPN connection across the Internet is similar to a wide area network (WAN) link between the sites. From a user perspective, the extended network resources are accessed in the same way as resources available from the private network.

• Question 400:

  Which of the following WAN technologies uses an analog phone line to transmit data?

  A. LTE
  B. DSL
  C. Satellite
  D. Cable
  B. DSL

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  DSL is a high-speed Internet service like cable Internet. DSL provides high- speed networking over ordinary phone lines using broadband modem technology. DSL technology allows Internet and telephone service to work over the same phone line without requiring customers to disconnect either their voice or Internet connections.