CompTIA CompTIA Certifications JK0-023 Questions & Answers

• Question 871:

  Some employees are unable to maintain a wireless network connecton. The networkns wireless infrastructure is comprised of three diferent buildings with the confguratons listed below. Wireless network in Building A and C is used exclusively for internal employees and Building B is used for visitors and requires no additonal confguraton on their devices. Which of the following setngs would need to be modifed to provide the BEST wireless experience for all employees as they move between buildings? Building A Building B Building C Channel: 1 Channel: 6 Channel: 11 Encrypton: WPA2 Encrypton: Open Encrypton: WPA2 SSID: Corp SSID: Guest SSID: Sales

  A. Change Channel in Building B to 7

  B. Change Encrypton in Building B to match A and C

  C. Change Channel in Building C to 1

  D. Change SSID in Building C to match Building A

  Correct Answer: D

• Question 872:

  Assigning the same IP address to a network device is which of the following?

  A. SSID

  B. Scope

  C. Reservaton

  D. Lease

  Correct Answer: C

• Question 873:

  A customer with a SOHO requires fastf securef cost-efectve access to the Internet. Which of the following would be the MOST appropriate soluton? (Select TWO).

  A. OC3 line with built-in frewall

  B. DS3 line with a separate frewall

  C. Cable modem with a separate frewall

  D. Dial-up modem with separate frewall

  E. DSL router with frewall capabilites

  Correct Answer: CE

• Question 874:

  Which of the following is the BEST way to prevent new users from connectng to a wireless access pointf but stll allow already connected users to contnue to connect?

  A. Create a MAC flter containing the current users.

  B. Turn of SSID broadcast.

  C. Change the encrypton type to AES 256-bit for current users.

  D. Reduce the signal strength to 0 percent.

  Correct Answer: A

• Question 875:

  Which of the following propertes of DHCP would a technician use to ensure an IP address is not leased out from the actve scope?

  A. Reservatons

  B. Lease tmes

  C. Removing IPs from the actve leases

  D. Confguring the DNS optons

  Correct Answer: A

• Question 876:

  A customer wants to keep cost to a minimum and has only ordered a single statc IP address from the ISP. Which of the following must be confgured on the router to allow for all the computers to share the same public IP address?

  A. VLANs

  B. PoE

  C. PAT

  D. VPN

  Correct Answer: C

• Question 877:

  A network technician is troubleshootng signal problems with certain WAPs in an ofce and fnds consistently high ping tmes across the units. Such an issue is called which of the following?

  A. Latency

  B. Atenuaton

  C. Crosstalk

  D. Frequency hopping

  Correct Answer: A

• Question 878:

  A network technician has just upgraded a switch. The new switchns IP range and subnet mask correctly match other network devices. The technician cannot ping any device outside of the switchns own IP subnet. The previous switch worked correctly with the same setngs. Which of the following is MOST likely the problem?

  A. The proxy server is set incorrectly.

  B. The Ethernet cable is pinched.

  C. The network gateway is set incorrectly.

  D. The IP address is set incorrectly.

  Correct Answer: C

• Question 879:

  A technician needs to ensure that trafc from a specifc department is separated within several switches. Which of the following needs to be confgured on the switch to separate the trafc?

  A. Duplex setngs

  B. SNMP string

  C. VLAN assignments

  D. Spanning tree

  Correct Answer: C

• Question 880:

  A userns laptop is unable to keep a stable network connecton. Which of the following measures would MOST likely need to be confgured?

  A. SSID name

  B. WAP encrypton strength

  C. WAP radio power

  D. Channel overlay

  Correct Answer: C