CompTIA Network+ Practice test 2

In the OSI model, the layer 4 TCP PDU is known as:

• Bit

• Frame

• Packet

• Segment

• Datagram

Which of the following answers does not refer to the OSI TCP segment header?

• Layer 4 header

• Source port number

• Destination port number

• Layer 3 header

• Sequence number

In the OSI model, the layer 4 UDP PDU is called

• Bit

• Frame

• Packet

• Segment

• Datagram

Which of the following answers does not refer to the OSI UDP datagram header?

• Length in bytes

• Destination port number

• Layer 4 header

• Source port number

• Layer 3 header

Which of the following TCP flags are used for establishing a network connection via TCP three-way handshake? (Select 2 answers)

• RST

• SYN

• FIN

• ACK

• URG

In the OSI model, the payload data (a.k.a. user data) is the actual data that is being nested between header and tail control information.

• True

• False

A limit on the maximum amount of data that can be transmitted over a network without fragmentation is referred to as:

• DSU

• CSU

• Data payload

• MTU

A network topology in which each node has a direct physical connection to every other node is known as:

• Star

• Bus

• Mesh

• Ring

Which type of network topology provides the highest level of redundancy?

• Ring

• Mesh

• Bus

• Star

A network topology where each node connects to a central switching device is known as: (Select 2 answers)

• Hub-and-spoke

• Bus

• Ring

• Star

• Mesh