Network Plus Questions

Which of the following devices can operate on multiple layers of the OSI model?

• Switch
• Hub

• Transceiver

• Modem

A network admin needs to connect two routers in a point-to-point configuration and conserve IP space. What of the following subnets should the admin use?

• /30
• 724

• /26

• /28

A network admin suspects users are being sent to malware sites that are posing as legitimate sites. The network admin investigates and discovers that user workstations are configured with incorrect DNS IP addresses. Which of the following should the network admin implement to prevent this from happening again?

• DHCP Snooping
• Dynamic ARP inspection

• Access Control Lists

• Port Security

A network admin performed upgrades on a server and installed a new NIC to improve performance. Follwing the upgrades, user A is unable to reach the server. Which of the following is most likely the reason?

• An incorrect cable type was installed
• The PoE power budget was exceeded

• TX/RX was transposed

• A port security violation occured

A customer recently moved into a new office and notices that some wall plates are not working and not properly labeled. Which of the following tools would be best to identify the proper wiring in the IDF?

• Toner and Probe
• Cable Tester

• Visual Fault Locator

• Network Tap

Which of the following are the best device-hardening techniques for network security?

• Disabling Unused Ports

• Performing Regular Scanning of Unauthorized Devices

• Enabling Logical Security Such as SSO

• Changing Default Passwords

• Ensuring Least-Privilege Concepts Are in Place

A network engineer is designing a secure communication link between two sites. The entire data stream needs to remain confidential. Which of the following will achieve this goal?

• ESP
• AH

• GRE

• IKE

A technician is troubleshooting a computer issue for a user who workings in a new annex of an offce building. The user is reporting slow speeds and intermittent connectivity. The computer is connected via a Cat 6 cable to a distribution switch that is 492 ft (150m) away. Which of the following should the technician implement to correct the issue?

• Install an access switch i nthe annex and run fiber to the distribution switch
• Increase the Bandwidth Allocation to the Computer

• Run A Cat 7 Cable From The Computer To The Distribution Switch

• Enable the Computer to Support Jumbo Frames

Which of the following technologies are X.509 certificates most commonly associated with?

• PKI
• VLAN Tagging

• LDAP

• MFA

Which of the following facilities is the best example of a warm site in the event of information system disruption?

• A combination of public and private cloud services to restore data

• A partial infrastructure, software and data on site

• A full electrical infrastructure in place, but no customer devices on site

• A full infrastructure in place, but no current data on site