CompTIA Network+ N10-008 Cert Guide
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– 1st Edition
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TEST BANK
IA
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Anthony J. Sequeira
PP
RO
Comprehensive Test Bank for Instructors and
Students
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© Anthony J. Sequeira
All rights reserved. Reproduction or distribution without permission is prohibited.
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©STUDYSTREAM
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N10-008 Network+ Instructor’s Test Bank (Chapters 1-25)
(updated by Michael D. Taylor, Feb 2023)
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Answer:and Explanation
References when used
Chapter Links For Production Convenience
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
IA
Notes:
• Many questions were moved from one chapter into another one if it was appropriate. You will
see this noted often.
• Other questions were not directly covered in the chapter, but are still considered important
concepts to know for the Network+ exam and were topically related to the chapter content.
_A
Those were moved to the end of the chapter and noted as ‘Bonus Questions’. Whether you
include them or not is up to you. I recommend using them to make the test bank for effective
to students actually taking the certification.
• Finally, where many questions were removed from a chapter, leaving too few questions,
additional questions were created from chapter content where possible. Some chapters are
short.
PP
RO
VE
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,ST
Chapter 1: OSI Model
1. At which OSI layer can a source MAC address be found in the Ethernet header?
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a. Network layer
b. Transport layer
c. Physical layer
d. Data link layer
Answer: d. Data link layer
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2. The option of sending a group of segments at one time, instead of just one segment at a time, is
provided at what layer of the OSI reference model?
a. Data link layer—using link aggregation
b. Network layer — using multiprotocol routing
c. Transport layer— using Windowing
_A
d. Physical layer—using interface bonding
Answer: c. Transport layer—using Windowing
Explanation: The key word was segments, a datagram term found at the Transport layer
3. The source IP address can be found in the header of a packet at this layer of the OSI reference
PP
model
a. Network layer
b. Session layer
c. Data link layer
d. Transport layer
RO
Answer: a. Network layers
4. Which of the following is a connectionless network layer protocol?
a. IP
b. TCP
c. UDP
d. SFTP
VE
Answer: a. IP
Explanation: UDP and TCP are Transport Layer. IP is Network layer and can only be made connection
oriented if coupled with TCP. When IP is coupled with UDP it is considered connectionless.
5. What is the protocol of the address used by a router (at Layer 3) to identify specific devices?
a. MAC
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b. IP
c. LLC
d. ARP
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,ST
Answer: b. IP
Explanation: The Internet Protocol (IP) address is used by routers (at Layer 3) to identify specific
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devices on a network. This type of address, as opposed to a MAC address, is used across routed devices
(routers) (that is, the IP address typically does not change when traffic flows through a router).
6. Which of the following can sequence a received set of segments correctly to reassemble a data
stream?
a. UDP
b. FTP
IA
c. ICMP
d. TCP
Answer: d. TCP
7. Which of the following correctly describes encapsulation as opposed to decapsulation?
_A
a. The data moves from the physical layer to application layer
b. A header is added at the beginning of a packet.
c. The frame header and trailer are stripped off
d. The packets are sent to the transport to be reassembled.
e. A port number is identified and the data associated with an application.
PP
Answer: b. A header is added at the beginning of a packet.
Explanation: As data moves down through the OSI model layers (on a host) it is encapsulated with a
header at each OSI Layer whether it be a segment, packet, or frame.
8. Which layer of the OSI reference model enforces the Maximum Transmission Unit (MTU) size
allowed for transmitted frames?
RO
a. Network layer
b. Transport layer
c. Physical layer
d. Data Link Layer
Answer: d. Data link layer
9. A Protocol Data Unit (PDU) refers to payload data with metadata fields that describe how the data
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needs to be handled by the different OSI layers. What is the name of the PDU in the physical
layer of the OSI reference model?
a. Segment
b. Frames
c. Bits
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d. Packet
Answer: c. Bits
??
ST
– 1st Edition
UV
TEST BANK
IA
_A
Anthony J. Sequeira
PP
RO
Comprehensive Test Bank for Instructors and
Students
VE
© Anthony J. Sequeira
All rights reserved. Reproduction or distribution without permission is prohibited.
D?
??
©STUDYSTREAM
,ST
N10-008 Network+ Instructor’s Test Bank (Chapters 1-25)
(updated by Michael D. Taylor, Feb 2023)
UV
Answer:and Explanation
References when used
Chapter Links For Production Convenience
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
IA
Notes:
• Many questions were moved from one chapter into another one if it was appropriate. You will
see this noted often.
• Other questions were not directly covered in the chapter, but are still considered important
concepts to know for the Network+ exam and were topically related to the chapter content.
_A
Those were moved to the end of the chapter and noted as ‘Bonus Questions’. Whether you
include them or not is up to you. I recommend using them to make the test bank for effective
to students actually taking the certification.
• Finally, where many questions were removed from a chapter, leaving too few questions,
additional questions were created from chapter content where possible. Some chapters are
short.
PP
RO
VE
D?
??
,ST
Chapter 1: OSI Model
1. At which OSI layer can a source MAC address be found in the Ethernet header?
UV
a. Network layer
b. Transport layer
c. Physical layer
d. Data link layer
Answer: d. Data link layer
IA
2. The option of sending a group of segments at one time, instead of just one segment at a time, is
provided at what layer of the OSI reference model?
a. Data link layer—using link aggregation
b. Network layer — using multiprotocol routing
c. Transport layer— using Windowing
_A
d. Physical layer—using interface bonding
Answer: c. Transport layer—using Windowing
Explanation: The key word was segments, a datagram term found at the Transport layer
3. The source IP address can be found in the header of a packet at this layer of the OSI reference
PP
model
a. Network layer
b. Session layer
c. Data link layer
d. Transport layer
RO
Answer: a. Network layers
4. Which of the following is a connectionless network layer protocol?
a. IP
b. TCP
c. UDP
d. SFTP
VE
Answer: a. IP
Explanation: UDP and TCP are Transport Layer. IP is Network layer and can only be made connection
oriented if coupled with TCP. When IP is coupled with UDP it is considered connectionless.
5. What is the protocol of the address used by a router (at Layer 3) to identify specific devices?
a. MAC
D?
b. IP
c. LLC
d. ARP
??
,ST
Answer: b. IP
Explanation: The Internet Protocol (IP) address is used by routers (at Layer 3) to identify specific
UV
devices on a network. This type of address, as opposed to a MAC address, is used across routed devices
(routers) (that is, the IP address typically does not change when traffic flows through a router).
6. Which of the following can sequence a received set of segments correctly to reassemble a data
stream?
a. UDP
b. FTP
IA
c. ICMP
d. TCP
Answer: d. TCP
7. Which of the following correctly describes encapsulation as opposed to decapsulation?
_A
a. The data moves from the physical layer to application layer
b. A header is added at the beginning of a packet.
c. The frame header and trailer are stripped off
d. The packets are sent to the transport to be reassembled.
e. A port number is identified and the data associated with an application.
PP
Answer: b. A header is added at the beginning of a packet.
Explanation: As data moves down through the OSI model layers (on a host) it is encapsulated with a
header at each OSI Layer whether it be a segment, packet, or frame.
8. Which layer of the OSI reference model enforces the Maximum Transmission Unit (MTU) size
allowed for transmitted frames?
RO
a. Network layer
b. Transport layer
c. Physical layer
d. Data Link Layer
Answer: d. Data link layer
9. A Protocol Data Unit (PDU) refers to payload data with metadata fields that describe how the data
VE
needs to be handled by the different OSI layers. What is the name of the PDU in the physical
layer of the OSI reference model?
a. Segment
b. Frames
c. Bits
D?
d. Packet
Answer: c. Bits
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