JK0-023 Online Practice Questions and Answers

A user reports intermitent network connectvity from their desktop PC. A technician determines the cause to be a bad wall jack and fxes the jack. Which of the following should the technician do NEXT?

A. Test the theory

B. Queston the user

C. Document the outcome

D. Verify functonality

Which of the following layers of the OSI model is responsible for stripping the TCP port informaton before sending the packet up to the next layer?

A. 2

B. 3

C. 4

D. 5

A small business owner is setng up a SOHO ofce. The business owner needs one device that will allow for Internet accessf trunk VLANsf translate multple private IP addresses into public IP addressesf and flter packets. Which of the following network devices will allow for all functons?

A. A VPN concentrator

B. A switch

C. A router

D. A proxy server

Which of the following uses copper wiring?

A. 10GBaseER

B. 10GBaseLW

C. 100BaseFX

D. 1000BaseT

An administrator would like to decrease the load tme of common websites that employees review daily. Which of the following can be installed?

A. Load balancing

B. VPN concentrator

C. Caching server

D. Fault tolerance

Which of the following atacks creates a bufer overfow to stop access to a system?

A. Blue jacking

B. DoS

C. Netstat

D. Man-in-the-middle

A user enters a password into a logon box on a PC. The server and the PC then compare one-way hashes to validate the password. Which of the following methods uses this process?

A. PKI

B. Kerberos

C. Single sign-on

D. CHAP

Which of the following security protocols would BEST protect a connecton to a remote email server and ensure full integrity of all transmited email communicaton?

A. TLS 1.2

B. SNMPv3

C. WPA2

D. SMTP

A home user wishes to secure the wireless network using strong encryptonf so they decide to use AES. Which of the following would be used as the encrypton method?

A. WEP

B. CCMP

C. TKIP

D. CHAP

Which of the following technologies could be implemented to improve call clarity when using VoIP technology?

A. Statc IP addressing

B. Caching engines

C. QoS

D. Port forwarding