N10-009_CompTIA Network+(41-61)

QUESTION NO: 41

While troubleshooting connectivity issues, a junior network administrator is given explicit instructions to test the host's TCP/IP stack first. Which of the following commands should the network administrator run?

• A. ping 127.0.0.1

• B. ping 169.254.1.1

• C. ping 172.16.1.1

• D. ping 192.168.1.1

QUESTION NO: 42

A network administrator is connecting two Layer 2 switches in a network. These switches must transfer data in multiple networks. Which of the following would fulfill this requirement?

• A. Jumbo frames

• B. 802.1Q tagging

• C. Native VLAN

• D. Link aggregation

QUESTION NO: 43

A network engineer receives a vendor alert regarding a vulnerability in a router CPU. Which of the following should the engineer do to resolve the issue?

• A. Update the firmware.

• B. Replace the system board.

• C. Patch the OS.

• D. Isolate the system.

QUESTION NO: 44

Which of the following is the most likely reason an insurance brokerage would enforce VPN usage?

• A. To encrypt sensitive data in transit

• B. To secure the endpoint

• C. To maintain contractual agreements

• D. To comply with data retentin requirements

QUESTION NO: 45

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?

• A. GRE

• B. IKE

• C. ESP

• D. AH

QUESTION NO: 46

A network engineer performed a migration to a new mail server. The engineer changed the MX record, verified the change was accurate, and confirmed the new mail server was reachable via the IP address in the A record. However, users are not receiving email. Which of the following should the engineer have done to prevent the issue from occurring?

• A. Change the email client configuration to match the MX record.

• B. Reduce the TTL record prior to the MX record change.

• C. Perform a DNS zone transfer prior to the MX record change.

• D. Update the NS record to reflect the IP address change.

QUESTION NO: 47

Which of the following best describes the transmission format that occurs at the transport layer over connectionless communication?

• A. Datagram

• B. Segment

• C. Frames

• D. Packets

QUESTION NO: 48

A network administrator is planning to host a company application in the cloud, making the application available for all internal and third-party users. Which of the following concepts describes this arrangement?

• A. Multitenancy

• B. VPC

• C. NFV

• D. SaaS

QUESTION NO: 49

A research facility is expecting to see an exponential increase in global network traffic in the near future. The offices are equipped with 2.5Gbps fiber connections from the ISP, but the facility is currently only utilizing 1Gbps connections. Which of the following would need to be configured in order to use the ISP's connection speed?

• A. 802.1Q tagging

• B. Network address translation

• C. Port duplex

• D. Link aggregation

QUESTION NO: 50

Which of the following protocols provides remote access utilizing port 22?

• A. SSH

• B. Telnet

• C. TLS

• D. RDP