CompTIA Network+ certification : JK0-023

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CompTIA JK0-023 Exam Syllabus Topics:

CompTIA Network+ certification Sample Questions:

1. A network technician has set up an FTP server for the company to distribute software updates for their products. Each vendor is provided with a unique username and password for security. Several vendors have discovered a virus in one of the security updates. The company tested all files before uploading them but retested the file and found the virus. Which of the following could the technician do for vendors to validate the proper security patch?

A) Use TFTP for tested and secure downloads
B) Require biometric authentication for patch updates
C) Provide an MD5 hash for each file
D) Implement a RADIUS authentication

2. A company has only three laptops that connect to their wireless network. The company is currently using WEP encryption on their wireless network. They have noticed unauthorized connections on their WAP and want to secure their wireless connection to prevent this. Which of the following security measures would BEST secure their wireless network? (Select TWO).

A) Enable and configure MAC filtering
B) Enable the SSID broadcast
C) Limit the DHCP scope to only have three addresses total
D) Change the broadcast channel to a less commonly used channel
E) Change the encryption method to WPA

3. Lisa, a technician, has configured a new switch that is remotely accessed using SSH. The switch is working properly but cannot be accessed remotely. Which of the following items is MOST likely missing in the configuration?

A) Port speed
B) Data VLAN
C) Cryptokey
D) NAT/PAT

4. After a new user moves furniture into a cubicle, the computer does not connect to the network any longer. Which of the following would be the MOST likely reason? (Select TWO).

A) Bad connectors
B) Mismatched MTU
C) Bad patch cable
D) TX/RX reversed
E) Bad Ethernet switch port

5. Frames are the Protocol Data Unit for which of the following layers of the OSI model?

A) Layer 3
B) Layer 2
C) Layer 4
D) Layer 1

Solutions: