CompTIA A+ Core 2 Question C-57

A user reports that they can browse the local network but cannot reach the Internet. A technician pings the local server and verifies the server responds but sites on the Internet do not. This could be caused by which of the following? (Select TWO).

A. Failed WINS server
B. Failed router
C. Disabled Windows firewall
D. Bad NIC
E. Failed gateway

Correct Answer: BE

CompTIA A+ Core 2 Question B-31

A newly deployed Windows PC cannot connect to the antivirus server on the local network for updates, but it can connect to other file servers and printers without issue. Which of the following is the MOST likely cause of this issue?

A. The PC’s Windows firewall is misconfigured
B. The PC has an incorrect IP address configured
C. The PC is on the wrong wireless network
D. The PC does not have remote assistance turned on

Correct Answer: A

CompTIA A+ Core 2 Question A-16

An end user has reported not receiving emails sent by a specific customer. Which of the following is the MOST likely cause of this issue?

A. The HIPS device is blocking the messages
B. The access control list is blocking the messages
C. The email filter has quarantined the messages
D. The firewall is blocking the sender’s email address

Correct Answer: C

CompTIA A+ Core 2 Question A-15

A technician has been notified that recent vulnerabilities have been discovered related to a type of SOHO router. The technician has verified that all connections and settings are appropriate. Which of the following actions should the technician take NEXT?

A. Change the router firewall settings
B. Check for and apply a firmware update
C. Reconfigure the QoS settings
D. Change router user-names and passwords

Correct Answer: B

CompTIA A+ Question L-87

A network technician has been tasked with deploying new VoIP phones on a network. When the technician plugs the Ethernet cable for the phone into the wall port, the phone fails to turn on. When the technician plugs the Ethernet cable directly into the computer, the computer is able to access the network. Which of the following is the MOST likely cause of this issue?

A. The network switch does not support PoE
B. The technician is connecting the phone to the wrong type of port
C. The firewall on the network is blocking access to the DHCP server
D. The Ethernet cable is the wrong type

Correct Answer: A

CompTIA A+ Question K-95

Which of the following devices uses MAC tables to allow multiple computers to access a single network connection?

A. Hub
B. Firewall
C. VoIP
D. Switch

Correct Answer: D