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CompTIA Network+ certification Sample Questions:

1. A technician is troubleshooting authentication issues on a server. It turns out the clock on
the server was 72 minutes behind. Setting the clock to the correct time fixed the issue. Given the scenario, which of the following authentication methods was being used?

A) RADIUS
B) Kerberos
C) TACACS+
D) CHAP

2. A company has attempted to introduce a new major network segment to allow growth in capacity. On the core switch, a GBIC was used to interconnect with a newly placed downstream distribution switch for the first time. Soon after this implementation, a network flood and an outage occurred between the core and new distribution network modules. Which of the following should the network administrator troubleshoot FIRST in order to rectify the issue?

A) Check whether an incorrect VLAN has been assigned to the new distribution switch.
B) Check for inconsistent or missing routes between the core and distribution switches.
C) Check for switching loops between core and distribution switches.
D) Check whether the GBIC was set to multi-mode instead of single-mode SFP.

3. The network technician is working in an office that has both VoIP telephone lines and analog lines. A user states that the fax machine is not sending or receiving faxes. The network technician determines that the fax machine uses an analog phone line. Which of the following tools would the technician use to troubleshoot the issue?

A) Toner probe
B) Buttset
C) Cable certifier
D) Cable tester

4. Which of the following authentication solutions use tickets that include valid credentials to access additional network resources?

A) RADIUS
B) Multi-factor authentication
C) Kerberos
D) TACACS+

5. Which of the following would Joe, a technician, use for a service that needs fast communication and is unaffected by packet loss?

A) ICMP
B) ARP
C) UDP
D) TCP

Solutions: