CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 631:

  Which of the following connector types is only used with copper media?

  A. ST
  B. SC
  C. MTRJ
  D. DB-9
  D. DB-9

• Question 632:

  An unusual amount of activity is coming into one of the switches in an IDF. A malware attack is suspected. Which of the following tools would appropriately diagnose the problem?

  A. Cable tester
  B. Protocol analyzer
  C. Load balancer
  D. OTDR
  B. Protocol analyzer

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  A packet analyzer is a computer program or a piece of computer hardware that can intercept and log traffic passing over a digital network or part of a network.As data streams flow across the network, the sniffer captures each packet and, if needed, decodes the packet's raw data, showing the values of various fields in the packet, and analyzes its content.

• Question 633:

  A company wants an administrator to perform a vulnerability test. The administrator finds the company has a POTS phone system. Which of the following can the administrator use to point out the phone system vulnerability?

  A. Honeypot
  B. Butt set
  C. Spyware
  D. Blue jacking
  B. Butt set

• Question 634:

  Which of the following has the LEAST amount of collisions in a domain?

  A. Bridge
  B. Hub
  C. Repeater
  D. Switch
  D. Switch

• Question 635:

  An administrator edits the network firewall configuration. After editing the configuration, the administrator logs the date and time of the edit and why it was performed in the firewall documentation. Which of the following BEST describes these actions?

  A. Asset management
  B. Baselines
  C. Network maps
  D. Change management
  D. Change management

• Question 636:

  A technician has resolved a ticket to fix a user's printer and has verified that the user is able to print with no issues. Which of the following action steps should the technician perform FIRST?

  A. Document findings and outcomes
  B. Establish a theory of probably cause
  C. Upgrade the printer drivers
  D. Close out the service ticket
  A. Document findings and outcomes

• Question 637:

  Which of the following protocols occurs at Layer 4 of the OSI model?

  A. ISDN
  B. IPX
  C. GRE
  D. UDP
  D. UDP

• Question 638:

  Which of the following cable types supports the FURTHEST distance when connecting various MDFs?

  A. Multimode
  B. UTP
  C. Singlemode
  D. CAT6
  C. Singlemode

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  Single-mode optical fiber (SMF) is an optical fiber designed to carry only a single ray of light (mode). These modes define the way the wave travels through space, i.e. how the wave is distributed in space.

• Question 639:

  Which of the following remote access protocols is commonly used for command line access to a device?

  A. RAS
  B. VPN
  C. RDP
  D. SSH
  D. SSH

• Question 640:

  A network technician is sent to troubleshoot a phone line in the building. The user reports a dial tone is not available when attempting to place a call. Which of the following tools should the technician utilize in this scenario?

  A. Protocol analyzer
  B. Punch down tool
  C. Multimeter
  D. Toner probe
  D. Toner probe