CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 221:

  A client has just leased a new office space in a busy commercial building and would like to install a wireless network. Several other tenants are on the same floor. Multiple wireless networks are present in the building. Which of the following can be changed on the client's wireless network to help ensure that interference from other wireless networks is at a minimum?

  A. WPA encryption key selection
  B. Channel selection
  C. Antenna types
  D. Disable SSID
  B. Channel selection

• Question 222:

  Which of the following features can BEST be used to facilitate authorized remote access to a network?

  A. VPN concentrator
  B. Proxy server
  C. Content filter
  D. Load balancer
  A. VPN concentrator

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  The VPN Concentrator is used for Remote Access VPN's. In typical use, a Remote Access VPN allows users to use an encrypted tunnel to securely access a corporate or other network via the Internet.

• Question 223:

  A computer configured by DHCP has a listed DNS server and gateway. Which of the following allows these settings to be configured?

  A. Reservations
  B. Leases
  C. Scopes
  D. Options
  D. Options

• Question 224:

  A customer's email server is not sending emails. Arrange the troubleshooting steps in the order the technician should perform them:

  Select and Place:

  

  

• Question 225:

  Based on the packet capture below, which of the following services is the client requesting?

  08:30:54.982378192.168.50.42.8329 > 192.168.50.20.53:

  S 32859235:32859235(0) win 8096

  08:30:55.001378192.168.50.20.53 > 192.168.50.42.8329:

  S 31845637: 31845637(0) ack 32859236 win 8096

  08:30:55.027578192.168.50.42.8329 > 192.168.50.51.53:

  ack 1 win 8096

  A. ARP
  B. SMTP
  C. DHCP
  D. DNS
  D. DNS

• Question 226:

  Which of the following protocols is MOST commonly associated with VoIP?

  A. LDAP
  B. HTTPS
  C. SIP
  D. SCP
  C. SIP

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  The Session Initiation Protocol (SIP) is a signaling communications protocol, widely used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP) networks.

• Question 227:

  Which of the following network monitoring resources would be used to analyze possible connectivity issues such as duplex mismatches and uptime statistics?

  A. Protocol analyzer
  B. Syslog server
  C. Packet sniffer
  D. IPS logs
  B. Syslog server

• Question 228:

  A large corporate office is looking to place smaller network closets around campus to handle switching for remote workstations. To which of the following is this referring?

  A. MDF
  B. VPN
  C. RDP
  D. IDF
  D. IDF

• Question 229:

  Which of the following can be described as a DoS attack?

  A. Disabling a specific system and making it unavailable to users
  B. Implementing a keylogger
  C. Intercepting a packet and decrypting the contents
  D. Communicating with employees to get company information
  A. Disabling a specific system and making it unavailable to users

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  A denial of service (DoS) attack is a malicious attempt to make a server or a network resource unavailable to users, usually by temporarily interrupting or suspending the services of a host connected to the Internet.

• Question 230:

  Which of the following would MOST likely be used by a network administrator to test DNS resolution?

  A. dig
  B. ipconfig
  C. netstat
  D. nbtstat
  A. dig

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  The command dig is a tool for querying DNS nameservers for information about host addresses, mail exchanges, nameservers, and related information. This tool can be used from any Linux (Unix) or Macintosh OS X operating system. The most typical use of dig is to simply query a single host.