CompTIA Network+ N10-007 Certification
Exams Guide 2026-2027 Test Practice
1. A network technician receives a call from a use who A
is experiencing network connectivity issues. The net-
work technician questions the user and learns the
user brought in a personal wired router to use mul-
tiple computers and connect to the network. Which of
the following has the user MOST likely introduced to
the network?
A. Rogue DHCP server
B. Evil twin
C. VLAN mismatch
D. Honeypot
2. A technician is setting up a direct connection between D
two older PCs so they can communicate but not be on
the corporate network. The technician does not have
access to a spare switch but does have spare Cat 6 ca-
bles, RJ-45 plugs, and a crimping tool. The technician
cuts off one end of the cable. Which of the following
should the technician do to make a crossover cable
before crimping the new plug?
A. Reverse the wires leading to pins 1 and 2
B. Reverse the wires leading to pins 1 and 3
C. Reverse the wires leading to pins 2 and 3
D. Reverse the wires leading to pins 2 and 4
3. An office network consists of one two-port router con- D
nected to a 12-port switch. A four-port hub is also con-
nected to the switch. On this particular network, which
of the following is the number of collision domain that
exist?
, CompTIA Network+ N10-007 Certification
Exams Guide 2026-2027 Test Practice
A. 3
B. 12
C. 13
D. 14
E. 15
4. A network technician wants to remotely and securely A
access the desktop of a Linux workstation. The desk-
top is running remote control software without en-
cryption. Which of the following should the technician
use to secure the connection?
A. SSH in tunnel mode
B. RDP set to console connection
C. EAP-PEAP
D. SFTP
5. Which of the following should current network per- A
formance be compared against to determine network
anomalies?
A. Baseline
B. Traffic analysis
C. Packet capture
D. Logs
6. A network administrator configures an email server to EFG
use secure protocols. When the upgrade is completed,
which of the following ports on the firewall should be
configured to allow for
connectivity? (Choose three.)
, A. TCP 25
B. TCP 110
C. TCP 143
D. TCP 389
E. TCP 587
F. TCP 993
G. TCP 995
7. After a server outage, a technician discovers that a A
physically damaged fiber cable appears to be the
problem. After replacing the cable, the server will still
not connect to the network. Upon inspecting the cable
at the server end, the technician discovers light can
be seen through one of the two fiber strands. Which
of the following should the technician do FIRST to
reconnect the server to the network?
A. Reverse the fiber strands of the cable and reconnect
them to the server
B. Use a TDR to test both strands of a new replacement
cable prior to connecting it to the server
C. Replace the server's single-mode fiber cable with
multimode fiber
D. Move the fiber cable to different port on the switch
where both strands function
8. The backups server connects to a NAS device using C
block-level storage over Ethernet. The performance is
very slow, however, and the network technician sus-
pects the performance issues
are network related. Which of the following should the
technician do to improve performance?
, A. Utilize UDP to eliminate packet overhead
B. Turn off MDIX settings on the NAS and server
switchports
C. Enable jumbo frames on the NAS and server
D. Encapsulate the storage traffic in a GRE tunnel
9. A technician is trying to determine the IP address of a C
customer's router. The customer has an IP address of
192.168.1.55/24. Which of the following is the address
of the customer's router?
A. 192.168.0.55
B. 192.168.1.0
C. 192.168.1.1
D. 192.168.5.5
E. 255.255.255.0
10. A network technician is able to connect the switches C
between to offices, but the offices cannot communi-
cate with each other, as each office uses a different IP
addressing scheme. Which of the
following devices needs to be installed between the
switches to allow communication?
A. Bridge
B. Access point
C. Router
D. Range extender
11. A network technician is working on a proposal for C
email migration from an on-premises email system
to a vendor-hosted email in the cloud. The technician
Exams Guide 2026-2027 Test Practice
1. A network technician receives a call from a use who A
is experiencing network connectivity issues. The net-
work technician questions the user and learns the
user brought in a personal wired router to use mul-
tiple computers and connect to the network. Which of
the following has the user MOST likely introduced to
the network?
A. Rogue DHCP server
B. Evil twin
C. VLAN mismatch
D. Honeypot
2. A technician is setting up a direct connection between D
two older PCs so they can communicate but not be on
the corporate network. The technician does not have
access to a spare switch but does have spare Cat 6 ca-
bles, RJ-45 plugs, and a crimping tool. The technician
cuts off one end of the cable. Which of the following
should the technician do to make a crossover cable
before crimping the new plug?
A. Reverse the wires leading to pins 1 and 2
B. Reverse the wires leading to pins 1 and 3
C. Reverse the wires leading to pins 2 and 3
D. Reverse the wires leading to pins 2 and 4
3. An office network consists of one two-port router con- D
nected to a 12-port switch. A four-port hub is also con-
nected to the switch. On this particular network, which
of the following is the number of collision domain that
exist?
, CompTIA Network+ N10-007 Certification
Exams Guide 2026-2027 Test Practice
A. 3
B. 12
C. 13
D. 14
E. 15
4. A network technician wants to remotely and securely A
access the desktop of a Linux workstation. The desk-
top is running remote control software without en-
cryption. Which of the following should the technician
use to secure the connection?
A. SSH in tunnel mode
B. RDP set to console connection
C. EAP-PEAP
D. SFTP
5. Which of the following should current network per- A
formance be compared against to determine network
anomalies?
A. Baseline
B. Traffic analysis
C. Packet capture
D. Logs
6. A network administrator configures an email server to EFG
use secure protocols. When the upgrade is completed,
which of the following ports on the firewall should be
configured to allow for
connectivity? (Choose three.)
, A. TCP 25
B. TCP 110
C. TCP 143
D. TCP 389
E. TCP 587
F. TCP 993
G. TCP 995
7. After a server outage, a technician discovers that a A
physically damaged fiber cable appears to be the
problem. After replacing the cable, the server will still
not connect to the network. Upon inspecting the cable
at the server end, the technician discovers light can
be seen through one of the two fiber strands. Which
of the following should the technician do FIRST to
reconnect the server to the network?
A. Reverse the fiber strands of the cable and reconnect
them to the server
B. Use a TDR to test both strands of a new replacement
cable prior to connecting it to the server
C. Replace the server's single-mode fiber cable with
multimode fiber
D. Move the fiber cable to different port on the switch
where both strands function
8. The backups server connects to a NAS device using C
block-level storage over Ethernet. The performance is
very slow, however, and the network technician sus-
pects the performance issues
are network related. Which of the following should the
technician do to improve performance?
, A. Utilize UDP to eliminate packet overhead
B. Turn off MDIX settings on the NAS and server
switchports
C. Enable jumbo frames on the NAS and server
D. Encapsulate the storage traffic in a GRE tunnel
9. A technician is trying to determine the IP address of a C
customer's router. The customer has an IP address of
192.168.1.55/24. Which of the following is the address
of the customer's router?
A. 192.168.0.55
B. 192.168.1.0
C. 192.168.1.1
D. 192.168.5.5
E. 255.255.255.0
10. A network technician is able to connect the switches C
between to offices, but the offices cannot communi-
cate with each other, as each office uses a different IP
addressing scheme. Which of the
following devices needs to be installed between the
switches to allow communication?
A. Bridge
B. Access point
C. Router
D. Range extender
11. A network technician is working on a proposal for C
email migration from an on-premises email system
to a vendor-hosted email in the cloud. The technician
