Which statement accurately explains the purpose of the TCP protocol and what it provides?

Which statement accurately explains the purpose of the TCP protocol and what it provides?
A . The primary purpose of TCP is to provide reliable communications between application services.
B . The primary purpose of TCP is to provide unreliable communications between application services
C . The primary purpose of TCP is to provide IP routing between application services.
D . The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTM

Answer: A

What is the meaning of carrier sense in the CSMA/CD algorithm?

What is the meaning of carrier sense in the CSMA/CD algorithm?
A . The host will retransmit the frame if it detects a collision during transmission.
B . The host is able to detect the transmission speed of the Ethernet switch port to which the host is connected.
C . The host will only transmit data when it detects that no other devices are transmitting.
D . The host will only transmit upon a timer expiry.
E . The host will only transmit when it receives the token.

Answer: C

Which command must be configured in a Dockerfile to accomplish this goal?

A DevOps engineer has built a container to host a web-server and it must run as an executable.

Which command must be configured in a Dockerfile to accomplish this goal?
A . ENTRYPOINT <usr/sbin/apache2ctl>
B . ENTRYPOINT [“/usr/sbin/apache2ctl”, “-D”, “FOREGROUND”]
C . ENTRYPOINT [“BACKGROUND”, “-D”, “/usr/sbin/apache2ctl”]
D . ENTRYPOINT {usr/sbin/apache2ctl}

Answer: B

Which of the following best describes an Ethernet bridge?

Which of the following best describes an Ethernet bridge?
A . A passive device simply used to connect two or more cables. Does not generate or amplify any signals.
B . A device that receives and retransmits a signal out its other ports, but does not do any Layer 2 analysis of the data.
C . A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitted.
D . A device that receives a signal and based on the Layer 3 destination address, makes a decision on which ports the signal should be retransmitted.

Answer: C