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CompTIA Network+ certification Sample Questions:

1. Which of the following is the main difference between TCP and UDP?

A) TCP data flows in two directions, while UDP data flows from server to client.
B) TCP connections can be secured by stateful firewalls, while UDP connections cannot.
C) The TCP header implements checksum, while the UDP header does not.
D) The TCP header implements flags, while the UDP header does not.

2. An organization notices a large amount of malware and virus incidents at one satellite office, but hardly any at another. All users at both sites are running the same company image and receive the same group policies. Which of the following has MOST likely been
implemented at the site with the fewest security issues?

A) Vulnerability scanning
B) Consent to monitoring
C) End-user awareness training
D) Business continuity measures

3. Tenants access multiple wireless networks in a building. Users report intermittent connectivity. Which of the following is the MOST likely cause of the problem?

A) The SSIDs are incompatible and should be renamed.
B) The channels are overlapping with other wireless networks and should be changed.
C) The default idle period for logoff is too short and should be changed to a longer limit.
D) The users have incompatible wireless network cards and should upgrade.

4. A user reports a network failure on a computer. The technician determines that the
computer and NIC are operating properly. Which of the following tools can the technician use to trace the network cabling back to the punch down block?

A) Toner probe
B) Multimeter
C) Protocol analyzer
D) Punch down tool

5. Which of the following network devices builds a table of ports to MAC addresses to forward packets only to necessary ports?

A) Router
B) Hub
C) Repeater
D) Switch

Solutions: