CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 521:

  Which of the following is the Telco end of a T1 demarc?

  A. Smart jack
  B. Network tap
  C. Proxy server
  D. IDF
  A. Smart jack

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  Smartjacks provides diagnostic capabilities. A very common capability provided by a smartjack is loopback, such that the signal from the telephone company is transmitted back to the telephone company. This allows the telephone company to test the line from the central office, without the need to have test equipment at the customer site. The telephone company usually has the ability to remotely activate loopback, without even needing personnel at the customer site. When looped back, the customer equipment is disconnected from the line.

• Question 522:

  An administrator would like to search for network vulnerabilities on servers, routers, and embedded appliances. Which of the following tools would MOST likely accomplish this?

  A. Baseline analyzer
  B. Ping
  C. Protocol analyzer
  D. Nessus
  D. Nessus

• Question 523:

  A technician wants to separate networks on a switch. Which of the following should be configured to allow this?

  A. VLAN
  B. Trunking
  C. Spanning tree
  D. Traffic filtering
  A. VLAN

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  A VLAN is a group of end stations in a switched network that is logically segmented by function, project team, or application, without regard to the physical locations of the users. VLANs have the same attributes as physical LANs, but you can group end stations even if they are not physically located on the same LAN segment.

• Question 524:

  Users at a remote site are unable to establish a VPN to the main office. At which of the following layers of the OSI model does the problem MOST likely reside?

  A. Presentation
  B. Application
  C. Physical
  D. Session
  D. Session

• Question 525:

  A technician is installing an 802.11n network. The technician is using a laptop that can connect at a maximum speed of 11 Mbps. The technician has configured the 802.11n network correctly but thinks it could be the type of WLAN card used on the laptop. Which of the following wireless standards is the WLAN card MOST likely using?

  A. 802.11a
  B. 802.11b
  C. 802.11g
  D. 802.11n
  B. 802.11b

• Question 526:

  Which of the following port numbers needs to be open on a firewall to allow FTP traffic?

  A. 21
  B. 22
  C. 23
  D. 25
  A. 21

• Question 527:

  A network administrator has decided to tighten company security after a recent data breach. The new scheme calls for a strong 10 character password, a special 4 digit pin code, and a one-time use dynamic token that is accessed via a smartphone application. Which of the following is being implemented?

  A. Two-factor authentication
  B. Biometric security
  C. Multi-factor authentication
  D. Single factor authentication
  A. Two-factor authentication

• Question 528:

  203.50.5.0 is an example of which of the following network classes?

  A. Class A
  B. Class B
  C. Class C
  D. Class D
  C. Class C

• Question 529:

  Which of the following cable types is employed to protect against interference in the physical environment or when security is a concern?

  A. STP
  B. RG-6
  C. Fiber
  D. RG-59
  C. Fiber

• Question 530:

  A technician is having issues accessing the Internet from the workstation. They are able to ping the DNS server and their default gateway. Which of the following commands can be used to verify DNS is functioning properly?

  A. nslookup
  B. netstat
  C. traceroute
  D. nbtstat
  A. nslookup