CompTIA Network+ Question B-31

After a company rolls out software updates, Jane, a lab researcher, is no longer able to use lab equipment connected to her PC. The technician contacts the vendor and determines there is an incompatibility with the latest IO drivers. Which of the following should the technician perform so that Jane can get back to work as quickly as possible?

A. Reformat and install the compatible drivers.
B. Reset Jane’s equipment configuration from a backup.
C. Downgrade the PC to a working patch level.
D. Restore Jane’s PC to the last known good configuration.
E. Roll back the drivers to the previous version.

Correct Answer: E

Explanation:
By rolling back the drivers Jane would be able to use her lab equipment again.
To roll back a driver in Windows means to return the driver to the version that was last installed for the device. Rolling back a driver is an easy way to return a driver to a working version when a driver update fails to fix a problem or maybe even causes a new problem. Think of rolling back a driver as a quick and easy way to uninstall the latest driver and then reinstall the previous one, all automatically.

CompTIA Network+ Question B-30

A user connects to a wireless network at the office and is able to access unfamiliar SMB shares and printers. Which of the following has happened to the user?

A. The user is connected using the wrong channel.
B. The user is connected to the wrong SSID.
C. The user is experiencing an EMI issue.
D. The user is connected to the wrong RADIUS server.

Correct Answer: B

Explanation:
The user is connecting to an SSID assigned to a different subnet. Therefore, the user has access to SMB shares and printers that are not recognizable.

CompTIA Network+ Question B-29

A network technician is using telnet to connect to a router on a network that has been compromised. A new user and password has been added to the router with full rights. The technician is concerned that the regularly used administrator account has been compromised. After changing the password on all networking devices, which of the following should the technician perform to prevent the password for the administrator account from being sniffed on the network?

A. Use SNMPv1 for all configurations involving the router
B. Ensure the password is 10 characters, containing letter and numbers
C. Copy all configurations to routers using TFTP for secuirty
D. Only allow administrators to access routers using port 22

Correct Answer: D

CompTIA Network+ Question B-28

Which of the following requires the network administrator to schedule a maintenance window?

A. When a company-wide email notification must be sent.
B. A minor release upgrade of a production router.
C. When the network administrator’s laptop must be rebooted.
D. A major release upgrade of a core switch in a test lab.

Correct Answer: B

Explanation:
During an update of a production router the router would not be able to route packages and the network traffic would be affected. It would be necessary to announce a maintenance window.
In information technology and systems management, a maintenance window is a period of time designated in advance by the technical staff, during which preventive maintenance that could cause disruption of service may be performed.

CompTIA Network+ Question B-26

An office user cannot access local network drives but has full access to the Internet. A technician troubleshoots the issue and observes the following output of the ipconfig command:


Which of the following would MOST likely allow the network drives to be accessed?

A. Update the WLAN adapter driver
B. Disable the WLAN adapter
C. Check the wireless DHCP configuration
D. Disable the LAN adapter

Correct Answer: B

CompTIA Network+ Question B-25

A network administrator is tasked with building a wireless network in a new adjacent building. Wireless clients should not have visibility to one another but should have visibility to the wired users. Users must seamlessly migrate between the two buildings while maintaining a connection to the LAN. Which of the following is the BEST way to configure the new wireless network in the new building?

A. Use the same SSIDs on different channels and AP isolation
B. Use different SSIDs on different channels and VLANs
C. Use different SSIDs on the same channels with VLANs
D. Use the same SSIDs on same channels with AP isolation

Correct Answer: A

CompTIA Network+ Question B-24

A telecommunications provider has just deployed a new OC-12 circuit at a customer site. While the circuit showed no errors from the provider end to the customer’s demarcation point, a network administrator is trying to determine the cause of dropped packets and errors on the circuit. Which of the following should the network administrator do to rule out any problems at Layer 1? (Choose two.)

A. Use a loopback at the demark and router, and check for a link light
B. Use an OTDR to validate the cable integrity
C. Use a pinout tester to validate the cable integrity
D. Use a multimeter to validate the cable integrity
E. Check for any devices that may be causing EMI on the cable
F. Clean the cables to be sure they are free of dust and debris

Correct Answer: AB

CompTIA Network+ Question B-23

A network administrator is noticing slow responds times from the server to hosts on the network. After adding several new hosts, the administrator realizes that CSMA/CD results in network slowness due to congestion at the server NIC. Which of the following should the network administrator do to correct the issue?

A. Add a honeypot to reduce traffic to the server
B. Update the Ethernet drivers to use 802.3
C. Add additional network cards to the server
D. Disable CSMA/CD on the network

Correct Answer: C

CompTIA Network+ Question B-22

Which of the following allows a telecommunication company to test circuits to customers remotely?

A. VLAN
B. Toner Probe
C. RDP
D. Smart Jack
E. VPN

Correct Answer: D