CCNA PRACTICE FINAL EXAM 1 | COMPLETE PRACTICE QUESTIONS, ANSWERS &
STUDY GUIDE 2026/2027
What is the default subnet mask for an IP address of 64.100.19.14? - correct answer ✔✔255.0.0.0
A network administrator has been notified that users have experienced problems gaining access to
network resources. What utility could be used to directly query a name server for information on a
destination domain? - correct answer ✔✔lookup
What does the term "attenuation" mean in data communication? - correct answer ✔✔loss of signal
strength as distance increases
What is the function of CSMA/CA on a wireless Ethernet network? - correct answer ✔✔to prevent
collisions
The area covered by a single AP is known as what? - correct answer ✔✔basic service set
The help desk at a large packaging company receives a call from a user who is concerned about lost data
files on the local PC. The help desk technician learns that the user clicked on an icon that appeared to be
a program update, but no updates were scheduled for that program. What type of attack has likely
occurred? - correct answer ✔✔worm
Which installation option enables a single physical resource to function simultaneously as multiple
logical resources? - correct answer ✔✔multi-boot
Which part of the electromagnetic spectrum is commonly used to exchange data between a PDA and a
computer? - correct answer ✔✔infrared
A company has a web server that must be accessible to both external and internal clients. Which security
policy best practice should be followed to maximize security of the server? - correct answer ✔✔Place
the web server in a DMZ
What is specified by the host bits in an IP address? - correct answer ✔✔identity of the computer on the
network
For an IP address, what component decides the number of bits that is used to represent the host ID? -
correct answer ✔✔subnet mask
What advantage does a peer-to-peer network have over a client-server network? - correct answer ✔✔It
increases scalability.
Refer to the exhibit. If H4 sends a message to H1 and the destination MAC address is in the MAC table
for both Switch1 and Switch2, which host devices will receive the message? - correct answer ✔✔only H1
STUDY GUIDE 2026/2027
What is the default subnet mask for an IP address of 64.100.19.14? - correct answer ✔✔255.0.0.0
A network administrator has been notified that users have experienced problems gaining access to
network resources. What utility could be used to directly query a name server for information on a
destination domain? - correct answer ✔✔lookup
What does the term "attenuation" mean in data communication? - correct answer ✔✔loss of signal
strength as distance increases
What is the function of CSMA/CA on a wireless Ethernet network? - correct answer ✔✔to prevent
collisions
The area covered by a single AP is known as what? - correct answer ✔✔basic service set
The help desk at a large packaging company receives a call from a user who is concerned about lost data
files on the local PC. The help desk technician learns that the user clicked on an icon that appeared to be
a program update, but no updates were scheduled for that program. What type of attack has likely
occurred? - correct answer ✔✔worm
Which installation option enables a single physical resource to function simultaneously as multiple
logical resources? - correct answer ✔✔multi-boot
Which part of the electromagnetic spectrum is commonly used to exchange data between a PDA and a
computer? - correct answer ✔✔infrared
A company has a web server that must be accessible to both external and internal clients. Which security
policy best practice should be followed to maximize security of the server? - correct answer ✔✔Place
the web server in a DMZ
What is specified by the host bits in an IP address? - correct answer ✔✔identity of the computer on the
network
For an IP address, what component decides the number of bits that is used to represent the host ID? -
correct answer ✔✔subnet mask
What advantage does a peer-to-peer network have over a client-server network? - correct answer ✔✔It
increases scalability.
Refer to the exhibit. If H4 sends a message to H1 and the destination MAC address is in the MAC table
for both Switch1 and Switch2, which host devices will receive the message? - correct answer ✔✔only H1
