Question: Hosts typically obtain their subnet mask information from
Answer Choices:
DHCP
None of the above
Network administrators, who configure hosts manually at first boot
The factory, where the subnet mask is hard-wired during computer assembly
Answer: DHCP
Question: Switches discover the MAC addresses of computers connected on the different ports by looking at the:
Answer Choices:
Source address of outgoing packets
Destination address of outgoing packets
Destination address of incoming packets
Source address of incoming packets
Answer: Source address of incoming packets
Question: The presentation layer in the OSI model is responsible for:
Answer Choices:
Presenting information to end users
Specifying end user needs
Error control
Syntax conversion from host specific syntax to network transfer
Answer: Syntax conversion from host specific syntax to network transfer
Question: An organization with a class B network address has 100 subnets. Each subnet in this organization can have at most ______ bits for the host ID.
Answer Choices:
7
8
9
6
Answer: 7
Question: An organization with a class B network address has 100 subnets. Each subnet in this organization can have at most ______ hosts.
Answer Choices:
256
64
512
128
Answer: 256
Question: The novelty of the Telegraph was that:
Answer Choices:
It allowed people to talk to each other
It allowed instantaneous long-distance communication over a wire
It allowed users to draw graphs
It allowed one wire to connect a user to multiple destinations
Answer: It allowed instantaneous long-distance communication over a wire
Question: The most common Data Link layer technology used in corporate networks is:
Answer Choices:
Ethernet
Internet
TCP
IP
Answer: Ethernet
Question: One character in the hexadecimal notation represents ____ bits.
Answer Choices:
2
4
6
8
Answer: 4
Question: Modulation is the process of:
Answer Choices:
Increasing the amplitude of a sine wave.
Changing one or more properties of a sine wave in response to data.
Increasing the frequency of a sine wave.
Shifting a wave to generate the sine wave.
Answer: Changing one or more properties of a sine wave in response to data.
Question: All of the following are examples of using broadcasting to transmit data, except:
Answer Choices:
A letter in the mail addressed to a friend
Junk mail
College classroom
Satellite radio transmission
Answer: A letter in the mail addressed to a friend
Question: Layering is the practice of:
Answer Choices:
Breaking down user data into small segments
Using one wire to carry multiple signals simultaneously
Arranging functionality of components so that lower layers support the services of upper layers
Arranging functionality of components so that upper layers support the services of lower layers
Answer: Arranging functionality of components so that lower layers support the services of upper layers
Question: The spanning tree protocol improves the performance of switched networks by:
Answer Choices:
Eliminating collisions
Reducing link distance
Eliminating loops
Adding routing
Answer: Eliminating loops
Question: Coding is:
Answer Choices:
The transformation of elements from one set of elements to another set.
The generation of sine waves for transmission over a medium.
The unit of information.
Changing one or more properties of a sine wave in response to data.
Answer: Changing one or more properties of a sine wave in response to data.
Question: A Signal is:
Answer Choices:
Cables connecting networked locations.
Detectable transmitted energy that can be used to carry information.
Converting data to signals for transmission over physical media.
Information added to data to remove errors.
Answer: Detectable transmitted energy that can be used to carry information.