CompTIA JK0-018 Online Practice Questions and Exam Preparation

CompTIA JK0-018 Online Questions & Answers

• Question 141:

  A network administrator has recently updated their network devices to ensure redundancy is in place so that:

  A. switches can redistribute routes across the network.
  B. environmental monitoring can be performed.
  C. single points of failure are removed.
  D. hot and cold aisles are functioning.
  C. single points of failure are removed.

• Question 142:

  A network stream needs to be encrypted. Sara, the network administrator, has selected a cipher which will encrypt 8 bits at a time before sending the data across the network. Which of the following has Sara selected?

  A. Block cipher
  B. Stream cipher
  C. CRC
  D. Hashing algorithm
  A. Block cipher

• Question 143:

  A malicious user is sniffing a busy encrypted wireless network waiting for an authorized client to connect to it. Only after an authorized client has connected and the hacker was able to capture the client handshake with the AP can the hacker begin a brute force attack to discover the encryption key. Which of the following attacks is taking place?

  A. IV attack
  B. WEP cracking
  C. WPA cracking
  D. Rogue AP
  C. WPA cracking

• Question 144:

  Without validating user input, an application becomes vulnerable to all of the following EXCEPT:

  A. Buffer overflow.
  B. Command injection.
  C. Spear phishing.
  D. SQL injection.
  C. Spear phishing.

• Question 145:

  A network administrator has purchased two devices that will act as failovers for each other. Which of the following concepts does this BEST illustrate?

  A. Authentication
  B. Integrity
  C. Confidentiality
  D. Availability
  D. Availability

• Question 146:

  Which of the following malware types may require user interaction, does not hide itself, and is commonly identified by marketing pop-ups based on browsing habits?

  A. Botnet
  B. Rootkit
  C. Adware
  D. Virus
  C. Adware

• Question 147:

  Which of the following would Pete, a security administrator, do to limit a wireless signal from penetrating the exterior walls?

  A. Implement TKIP encryption
  B. Consider antenna placement
  C. Disable the SSID broadcast
  D. Disable WPA
  B. Consider antenna placement

• Question 148:

  DRAG DROP

  Determine the types of Attacks from right to specific action.

  Select and Place:

  

  

• Question 149:

  Which of the following can Pete, a security administrator, use to distribute the processing effort when generating hashes for a password cracking program?

  A. RAID
  B. Clustering
  C. Redundancy
  D. Virtualization
  B. Clustering

• Question 150:

  Pete, the system administrator, is reviewing his disaster recovery plans. He wishes to limit the downtime in the event of a disaster, but does not have the budget approval to implement or maintain an offsite location that ensures 99.99% availability. Which of the following would be Pete's BEST option?

  A. Use hardware already at an offsite location and configure it to be quickly utilized.
  B. Move the servers and data to another part of the company's main campus from the server room.
  C. Retain data back-ups on the main campus and establish redundant servers in a virtual environment.
  D. Move the data back-ups to the offsite location, but retain the hardware on the main campus for redundancy.
  A. Use hardware already at an offsite location and configure it to be quickly utilized.