Ultimate Cisco CCNA Study Guide for IT Networking:
Pass the Exam with Expert Tips, Practice Questions, and
Certification Strategies
Question 1: An employee has the option of working from home, and their home is located in
the same town as the main office. The only option available to connect to the main office is to
use the internet. The employee sets up the network, consisting of one desktop computer and a
printer. Whi1ch statements regarding the workers SOHO are correct? (Choose two.)
a) The SOHO network is primarily used for large-scale enterprise deployments.
b) The SOHO network is an individual network that can function on its own.
c) SOHO needs a direct fiber optic connection to the main office for all operations.
d) SOHO needs a connection to the internet to access the enterprise resources located at the
main office.
Correct Answers: b) The SOHO network is an individual network that can function on its own.
AND d) SOHO needs a connection to the internet to access the enterprise resources located at
the main office.
Rationale: A SOHO network (Small Office/Home Office) can perform local functions like printing
and local file access independently. However, to access resources located at the main office
(enterprise resources), an internet connection is essential as per the scenario.
Question 2: Which four of the following are network intermediary devices? (Choose four.)
a) Access point
b) End device
c) Firewall
d) Server
e) Switch
,f) Wireless LAN controller
Correct Answers: a) Access point, c) Firewall, e) Switch, f) Wireless LAN controller
Rationale: Intermediary devices connect end devices and facilitate data flow within a network.
Access points enable wireless connectivity, firewalls control traffic, switches connect multiple
devices within a LAN, and wireless LAN controllers manage multiple access points. End devices
(like servers) are sources or destinations of data, not intermediaries.
Question 3: Which three statements about network characteristics are true? (Choose three.)
a) Bitrate is a measure of the data rate in bits per second of a given link in the network.
b) Latency measures the amount of data transferred over a period.
c) Availability is a measure of the probability that the network will be available for use when it is
required.
d) Reliability indicates to what extent you can count upon network components to perform as
they are expected to.
e) Throughput is the maximum theoretical speed of a network link.
Correct Answers: a) Bitrate is a measure of the data rate in bits per second of a given link in the
network., c) Availability is a measure of the probability that the network will be available for use
when it is required., AND d) Reliability indicates to what extent you can count upon network
components to perform as they are expected to.
Rationale:
• Bitrate correctly defines the data transfer speed.
• Availability refers to the uptime and readiness of the network.
• Reliability describes the dependability and consistent performance of network
components.
• Latency measures delay, not data amount. Throughput is the actual data transferred,
which can be less than the theoretical maximum (bandwidth).
Question 4: Which interface is defined in the S0/0/0 format?
a) Ethernet interface
,b) Loopback interface
c) Serial interface
d) VLAN interface
Correct Answer: c) Serial interface
Rationale: In Cisco IOS and similar networking contexts, the "S" prefix in an interface name like
S0/0/0 commonly denotes a Serial interface, typically used for WAN connections.
Question 5: Which two options represent the meaning of the label Gi2/1? (Choose two.)
a) The interface is a Fast Ethernet interface.
b) The interface is a Gigabit Ethernet interface.
c) There is only one slot for interface cards on the hardware.
d) There is more than one slot for interface cards on the hardware.
Correct Answers: b) The interface is a Gigabit Ethernet interface. AND d) There is more than
one slot for interface cards on the hardware.
Rationale: The "Gi" prefix stands for Gigabit Ethernet. The numbering format Slot/Port (e.g.,
2/1) indicates that 2 is the slot number, implying that the device supports multiple interface
card slots.
Question 6: Which network characteristic indicates the dependability of the components that
make up the network?
a) Availability
b) Scalability
c) Reliability
d) Throughput
Correct Answer: c) Reliability
Rationale: Reliability refers to the consistency and trustworthiness of network components to
perform their expected functions without failure over time.
, Question 7: What are three examples of remote access locations? (Choose three.)
a) Branch offices
b) Data centers
c) Small office/home office (SOHO)
d) A network in an airport lounge
e) Main corporate campus
Correct Answers: a) Branch offices, c) Small office/home office (SOHO), AND d) A network in an
airport lounge
Rationale: Remote access locations are places outside the main corporate network from which
users or other networks need to connect. Branch offices, SOHO environments, and public places
like airport lounges are common examples. Data centers and the main corporate campus are
typically the central points being accessed, not the remote access points themselves.
Question 8: What is the availability percentage over a one year period of the network that is not
available for 15 minutes each month?
a) 99.9999 percent
b) 99.9657 percent
c) 99.9000 percent
d) 99.9965 percent
Correct Answer: b) 99.9657 percent
Rationale:
• Total minutes in a year: 365 days * 24 hours/day * 60 minutes/hour = 525,600 minutes.
• Total downtime per year: 15 minutes/month * 12 months = 180 minutes.
• Total uptime per year: 525,600 - 180 = 525,420 minutes.
• Availability percentage: (525,,600) * 100% = 99.9657%
Question 9: What is the function of a firewall?
Pass the Exam with Expert Tips, Practice Questions, and
Certification Strategies
Question 1: An employee has the option of working from home, and their home is located in
the same town as the main office. The only option available to connect to the main office is to
use the internet. The employee sets up the network, consisting of one desktop computer and a
printer. Whi1ch statements regarding the workers SOHO are correct? (Choose two.)
a) The SOHO network is primarily used for large-scale enterprise deployments.
b) The SOHO network is an individual network that can function on its own.
c) SOHO needs a direct fiber optic connection to the main office for all operations.
d) SOHO needs a connection to the internet to access the enterprise resources located at the
main office.
Correct Answers: b) The SOHO network is an individual network that can function on its own.
AND d) SOHO needs a connection to the internet to access the enterprise resources located at
the main office.
Rationale: A SOHO network (Small Office/Home Office) can perform local functions like printing
and local file access independently. However, to access resources located at the main office
(enterprise resources), an internet connection is essential as per the scenario.
Question 2: Which four of the following are network intermediary devices? (Choose four.)
a) Access point
b) End device
c) Firewall
d) Server
e) Switch
,f) Wireless LAN controller
Correct Answers: a) Access point, c) Firewall, e) Switch, f) Wireless LAN controller
Rationale: Intermediary devices connect end devices and facilitate data flow within a network.
Access points enable wireless connectivity, firewalls control traffic, switches connect multiple
devices within a LAN, and wireless LAN controllers manage multiple access points. End devices
(like servers) are sources or destinations of data, not intermediaries.
Question 3: Which three statements about network characteristics are true? (Choose three.)
a) Bitrate is a measure of the data rate in bits per second of a given link in the network.
b) Latency measures the amount of data transferred over a period.
c) Availability is a measure of the probability that the network will be available for use when it is
required.
d) Reliability indicates to what extent you can count upon network components to perform as
they are expected to.
e) Throughput is the maximum theoretical speed of a network link.
Correct Answers: a) Bitrate is a measure of the data rate in bits per second of a given link in the
network., c) Availability is a measure of the probability that the network will be available for use
when it is required., AND d) Reliability indicates to what extent you can count upon network
components to perform as they are expected to.
Rationale:
• Bitrate correctly defines the data transfer speed.
• Availability refers to the uptime and readiness of the network.
• Reliability describes the dependability and consistent performance of network
components.
• Latency measures delay, not data amount. Throughput is the actual data transferred,
which can be less than the theoretical maximum (bandwidth).
Question 4: Which interface is defined in the S0/0/0 format?
a) Ethernet interface
,b) Loopback interface
c) Serial interface
d) VLAN interface
Correct Answer: c) Serial interface
Rationale: In Cisco IOS and similar networking contexts, the "S" prefix in an interface name like
S0/0/0 commonly denotes a Serial interface, typically used for WAN connections.
Question 5: Which two options represent the meaning of the label Gi2/1? (Choose two.)
a) The interface is a Fast Ethernet interface.
b) The interface is a Gigabit Ethernet interface.
c) There is only one slot for interface cards on the hardware.
d) There is more than one slot for interface cards on the hardware.
Correct Answers: b) The interface is a Gigabit Ethernet interface. AND d) There is more than
one slot for interface cards on the hardware.
Rationale: The "Gi" prefix stands for Gigabit Ethernet. The numbering format Slot/Port (e.g.,
2/1) indicates that 2 is the slot number, implying that the device supports multiple interface
card slots.
Question 6: Which network characteristic indicates the dependability of the components that
make up the network?
a) Availability
b) Scalability
c) Reliability
d) Throughput
Correct Answer: c) Reliability
Rationale: Reliability refers to the consistency and trustworthiness of network components to
perform their expected functions without failure over time.
, Question 7: What are three examples of remote access locations? (Choose three.)
a) Branch offices
b) Data centers
c) Small office/home office (SOHO)
d) A network in an airport lounge
e) Main corporate campus
Correct Answers: a) Branch offices, c) Small office/home office (SOHO), AND d) A network in an
airport lounge
Rationale: Remote access locations are places outside the main corporate network from which
users or other networks need to connect. Branch offices, SOHO environments, and public places
like airport lounges are common examples. Data centers and the main corporate campus are
typically the central points being accessed, not the remote access points themselves.
Question 8: What is the availability percentage over a one year period of the network that is not
available for 15 minutes each month?
a) 99.9999 percent
b) 99.9657 percent
c) 99.9000 percent
d) 99.9965 percent
Correct Answer: b) 99.9657 percent
Rationale:
• Total minutes in a year: 365 days * 24 hours/day * 60 minutes/hour = 525,600 minutes.
• Total downtime per year: 15 minutes/month * 12 months = 180 minutes.
• Total uptime per year: 525,600 - 180 = 525,420 minutes.
• Availability percentage: (525,,600) * 100% = 99.9657%
Question 9: What is the function of a firewall?
