CNET 157 – Exam Study Guide – Questions and Solutions –
2025/2026
Which best describes a model - correct answer ✔✔ A representation of a real object or process
The OSI model has _______ layers and the TCP model has ______layers - correct answer ✔✔ 7
and 4
The internet layer of the TCP model corresponds to which layer(s) of the OSI model - correct
answer ✔✔ Network
What is a chunk of data that has been sent out of a NIC called - correct answer ✔✔ Frame
Where does a computer get the MAc Address - correct answer ✔✔ It is built into the network
interface card
Which protocol is connectionless - correct answer ✔✔ UDP
Which Of the following is not a valid network topology? - correct answer ✔✔ Mesh BUs
What category of wiring should be installed so do not reword a faculty when they upgrade
Ethernet speed? - correct answer ✔✔ Cat 6a
Which type of fiber optic cable supports longer run lengths? - correct answer ✔✔ Single mode
Which of the following is not a fire rating for network cables? - correct answer ✔✔ Cat 6a
2025/2026
Which best describes a model - correct answer ✔✔ A representation of a real object or process
The OSI model has _______ layers and the TCP model has ______layers - correct answer ✔✔ 7
and 4
The internet layer of the TCP model corresponds to which layer(s) of the OSI model - correct
answer ✔✔ Network
What is a chunk of data that has been sent out of a NIC called - correct answer ✔✔ Frame
Where does a computer get the MAc Address - correct answer ✔✔ It is built into the network
interface card
Which protocol is connectionless - correct answer ✔✔ UDP
Which Of the following is not a valid network topology? - correct answer ✔✔ Mesh BUs
What category of wiring should be installed so do not reword a faculty when they upgrade
Ethernet speed? - correct answer ✔✔ Cat 6a
Which type of fiber optic cable supports longer run lengths? - correct answer ✔✔ Single mode
Which of the following is not a fire rating for network cables? - correct answer ✔✔ Cat 6a
