IT-212 Module 1 Quiz (NP5.0)
Score: 100%
Question 1: Which of the following cable types often includes a solid plastic core that keeps the twisted pairs separated?
Correct Answer:
Cat 6
Incorrect Answer:
Cat 3
Incorrect Answer:
Cat 5 Cat 5e
Incorrect Answer:
EXPLANATION
Cat 6 cables include a solid plastic core that keeps the twisted pairs separated and prevents the cable from being bent too tightly.
Question 2: Which of the following best describes how a switch functions?
Incorrect Answer: its ports.
It connects multiple cable segments (or devices) and broadcasts frames to all of
Incorrect Answer: It connects multiple segments of different architectures. It translates frames and broadcasts them to all of its ports.
Correct Answer: It connects multiple cable segments (or devices) and forwards frames to the ippropriate segmen Incorrect Answer: It connects multiple segments of different architectures. It translates frames and forwards them to the appropriate segment. EXPLANATION Switches have multiple ports and can connect multiple segments or devices. The switch forwards frames to the appropriate port. They function similarly to a hub, except instead of sending packets to all ports, switches send packets only to the destination computer's port.
Question 3: Which of the following connectors is used with Ethernet 100BaseT networks?
Incorrect Answer:
ST
Incorrect Answer:
BNC
Correct Answer:
RJ45 RJ11
Incorrect Answer:
EXPLANATION
RJ45 connectors are used with Ethernet 100BaseT networks. RJ11 connectors are used with phone, dial-up internet, and DSL modem connections. BNC connectors are used with coaxial cable. ST connectors are used with fiber optic cable.
Question 4: Which of the following devices does not segment the network? Router a Correct Answer: Hub Incorrect Answer: Switch
Incorrect Answer:
Firewall
EXPLANATION
A hub does not create multiple segments on the network. A segment is a portion of the network that has different media, collision domains, or broadcast domains. A hub simply connects devices using the same media type. All devices are members of the same collision and broadcast domains.
On a switch, each switch port is in a separate collision domain. With a router or a firewall, each connected network is a different broadcast domain.
Question 5: Which of the following devices operates at the OSI model Layer 2? Firewall Switch Incorrect Answer: Hub Incorrect Answer: Router EXPLANATION A switch operates at the OSI model Layer 2 (Data Link layer). It reads the MAC address to make frame forwarding decisions. A hub operates at OSI model Layer 1 (Physical layer), while a router and a firewall operate at OSI model Layer 3 (Network layer).
Question 6: Which OSI model layer is responsible for guaranteeing reliable message delivery? Session Transport Incorrect Answer:- Data Link Application EXPLANATION The Transport layer is responsible for connection services that provide reliable message delivery through error detection and correction mechanisms. Specifically, the TCP protocol provides these services. The Application layer integrates network functionality into the host operating system and enables network
Data Link layer defines the rules and procedures for hosts as they access the Physical layer.
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