LATEST COMPTIA NETWORK+ (N10-009)
EXAM BANK | COMPLETE EXAM BANK
WITH CORRECT ANSWERS AND
RATIONALES. A+ GRADED
1. Which of the following OSI model layers is
responsible for logical addressing (IP addresses) and
routing?
A) Data Link Layer
B) Network Layer
C) Transport Layer
D) Session Layer
Correct answer: B
Rationale: The Network Layer (Layer 3) handles
logical addressing (IPv4, IPv6) and routing. Data Link
Layer handles MAC addresses.
2. A technician needs to terminate a Cat6 cable with
an RJ45 connector using the T568A standard. Which
color order is correct for pins 1 through 8?
A) White-Orange, Orange, White-Green, Blue, White-
Blue, Green, White-Brown, Brown
,B) White-Green, Green, White-Orange, Blue, White-
Blue, Orange, White-Brown, Brown
C) White-Orange, Orange, White-Green, Green,
White-Blue, Blue, White-Brown, Brown
D) White-Brown, Brown, White-Green, Blue, White-
Blue, Green, White-Orange, Orange
Correct answer: B
Rationale: T568A: pin1 White-Green, pin2 Green, pin3
White-Orange, pin4 Blue, pin5 White-Blue, pin6
Orange, pin7 White-Brown, pin8 Brown.
3. Which of the following wireless standards operates
in both the 2.4 GHz and 5 GHz bands and introduced
MIMO (Multiple Input Multiple Output)?
A) 802.11a
B) 802.11b
C) 802.11g
D) 802.11n
Correct answer: D
Rationale: 802.11n (Wi-Fi 4) operates in both 2.4 GHz
and 5 GHz and introduced MIMO. 802.11ac (Wi-Fi 5) is
5 GHz only. 802.11ax (Wi-Fi 6) is both.
,4. What is the default subnet mask for a Class C IP
address?
A) 255.0.0.0
B) 255.255.0.0
C) 255.255.255.0
D) 255.255.255.252
Correct answer: C
Rationale: Class C: first octet 192-223, default subnet
mask 255.255.255.0 (/24). Class A: 255.0.0.0, Class B:
255.255.0.0.
5. A network technician needs to connect two
switches that are 150 meters apart. Which cable type
is most appropriate?
A) Cat6 UTP (max 100 meters)
B) Single-mode fiber (SMF) with SFP+ transceivers
C) Cat5e UTP
D) Coaxial cable
Correct answer: B
Rationale: UTP is limited to 100 meters. Single-mode
fiber supports distances up to 10+ km. Multimode
fiber is used for shorter distances (up to 550m).
, 6. Which of the following is a feature of a Virtual Local
Area Network (VLAN)?
A) Increases the size of a broadcast domain
B) Segments a physical network into multiple logical
networks, improving security and reducing
broadcast traffic
C) Eliminates the need for a router
D) Automatically assigns IP addresses
Correct answer: B
Rationale: VLANs logically separate broadcast
domains. Traffic between VLANs requires a router or
Layer 3 switch.
7. A user reports that they cannot access any
network resources. The technician runs ipconfig and
sees an IP address of 169.254.67.89. This address is
an example of:
A) A static IP address assigned by the administrator
B) An APIPA (Automatic Private IP Addressing)
address assigned when a DHCP server is unavailable
C) A loopback address
D) A multicast address
Correct answer: B
EXAM BANK | COMPLETE EXAM BANK
WITH CORRECT ANSWERS AND
RATIONALES. A+ GRADED
1. Which of the following OSI model layers is
responsible for logical addressing (IP addresses) and
routing?
A) Data Link Layer
B) Network Layer
C) Transport Layer
D) Session Layer
Correct answer: B
Rationale: The Network Layer (Layer 3) handles
logical addressing (IPv4, IPv6) and routing. Data Link
Layer handles MAC addresses.
2. A technician needs to terminate a Cat6 cable with
an RJ45 connector using the T568A standard. Which
color order is correct for pins 1 through 8?
A) White-Orange, Orange, White-Green, Blue, White-
Blue, Green, White-Brown, Brown
,B) White-Green, Green, White-Orange, Blue, White-
Blue, Orange, White-Brown, Brown
C) White-Orange, Orange, White-Green, Green,
White-Blue, Blue, White-Brown, Brown
D) White-Brown, Brown, White-Green, Blue, White-
Blue, Green, White-Orange, Orange
Correct answer: B
Rationale: T568A: pin1 White-Green, pin2 Green, pin3
White-Orange, pin4 Blue, pin5 White-Blue, pin6
Orange, pin7 White-Brown, pin8 Brown.
3. Which of the following wireless standards operates
in both the 2.4 GHz and 5 GHz bands and introduced
MIMO (Multiple Input Multiple Output)?
A) 802.11a
B) 802.11b
C) 802.11g
D) 802.11n
Correct answer: D
Rationale: 802.11n (Wi-Fi 4) operates in both 2.4 GHz
and 5 GHz and introduced MIMO. 802.11ac (Wi-Fi 5) is
5 GHz only. 802.11ax (Wi-Fi 6) is both.
,4. What is the default subnet mask for a Class C IP
address?
A) 255.0.0.0
B) 255.255.0.0
C) 255.255.255.0
D) 255.255.255.252
Correct answer: C
Rationale: Class C: first octet 192-223, default subnet
mask 255.255.255.0 (/24). Class A: 255.0.0.0, Class B:
255.255.0.0.
5. A network technician needs to connect two
switches that are 150 meters apart. Which cable type
is most appropriate?
A) Cat6 UTP (max 100 meters)
B) Single-mode fiber (SMF) with SFP+ transceivers
C) Cat5e UTP
D) Coaxial cable
Correct answer: B
Rationale: UTP is limited to 100 meters. Single-mode
fiber supports distances up to 10+ km. Multimode
fiber is used for shorter distances (up to 550m).
, 6. Which of the following is a feature of a Virtual Local
Area Network (VLAN)?
A) Increases the size of a broadcast domain
B) Segments a physical network into multiple logical
networks, improving security and reducing
broadcast traffic
C) Eliminates the need for a router
D) Automatically assigns IP addresses
Correct answer: B
Rationale: VLANs logically separate broadcast
domains. Traffic between VLANs requires a router or
Layer 3 switch.
7. A user reports that they cannot access any
network resources. The technician runs ipconfig and
sees an IP address of 169.254.67.89. This address is
an example of:
A) A static IP address assigned by the administrator
B) An APIPA (Automatic Private IP Addressing)
address assigned when a DHCP server is unavailable
C) A loopback address
D) A multicast address
Correct answer: B
