CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 231:

  Sandyf an administratorf determines there are an excessive number of packets being sent to a web server repeatedly by a small number of external IP addresses. This is an example of which of the following atacks?

  A. DDoS
  B. Viruses
  C. Worms
  D. Man-in-the-middle
  A. DDoS

• Question 232:

  Which of the following network access methods is the MOST secure?

  A. PPPoE
  B. SIP
  C. RSH
  D. IPSec
  D. IPSec

• Question 233:

  Which of the following tools would Kurtf an administratorf use to identfy opens and shorts?

  A. Ohmmeter
  B. Protocol analyier
  C. Cable tester
  D. Multmeter
  C. Cable tester

• Question 234:

  Which of the following is a common LAN protocol used for a SOHO?

  A. ATM
  B. DSL
  C. Ethernet
  D. HDLC
  C. Ethernet

• Question 235:

  Which of the following is an example of two factor authentcaton?

  A. Passwordf device certfcate and PIN
  B. SSL web server certfcate and password
  C. User password and administrator password
  D. Password and hardware token OTP
  D. Password and hardware token OTP

• Question 236:

  Zachf the network administratorf has just fnished installing a new 10/100/1000 switchf but receives reports from the server administrator that servers connected to the new switch seem to be experiencing slow LAN connectons. Zach checks the port connectng the new switch to the core switch and sees the following informaton: #show run interface GigabitEthernet0/10 Switchport trunk encapsulaton dot1q Switchport mode trunk Switchport trunk natve VLAN 10 Which of the following is the MOST likely cause of the slow connectons?

  A. The servers have not had VLAN tagging enabled on their NICs.
  B. Speed and duplex have not been set.
  C. VLAN tagging was not set on the trunk.
  D. The servers have been connected with CAT5 cable.
  B. Speed and duplex have not been set.

• Question 237:

  The network technician is troubleshootng a connectvity issue on a CAT5 cable with a wire map and notces that only pins 1f 3f and 6 are mapping correctly. Which of the following pins are open and keeping trafc from fowing correctly?

  A. 2
  B. 4
  C. 5
  D. 8
  A. 2

• Question 238:

  Sandyf a userf is unable to access the Internet. The network administrator notces that the workstaton has an APIPA address. Which of the following is MOST likely not functoning correctly in this situaton?

  A. Broadcast address
  B. Multcast address
  C. DNS
  D. DHCP
  D. DHCP

• Question 239:

  Which of the following is the unit used to transfer informaton at Layer 2 of the OSI model?

  A. Packet
  B. Socket
  C. Session
  D. Frame
  D. Frame

• Question 240:

  Which of the following is needed to allow DHCP to route to a diferent network separated by a Layer 3 device?

  A. DNS sufxes
  B. DHCP relay agent
  C. Statc IP addressing
  D. Scope confguraton
  B. DHCP relay agent