CCNA EXAM 1 | COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY
GUIDE 2026/2027
In the show running-config command, which part of the syntax is represented by running-config ? -
correct answer ✔✔a keyword
An employee at a branch office is creating a quote for a customer. In order to do this, the employee
needs to access confidential pricing information from internal servers at the Head Office. What type of
network would the employee access? - correct answer ✔✔an intranet
Which statement describes the use of powerline networking technology? - correct answer ✔✔A device
connects to an existing home LAN using an adapter and an existing electrical outlet.
Match the requirements of a reliable network with the supporting network architecture. (Not all options
are used.) - correct answer ✔✔Protect the network from unauthorized access. = Security, Provide
redundant links and devices = Fault Tolerance, Expand the network without degrading the service for
existing users = Scalability
A networking technician is working on the wireless network at a medical clinic. The technician
accidentally sets up the wireless network so that patients can see the medical records data of other
patients. Which of the four network characteristics has been violated in this situation? - correct answer
✔✔security
Match each characteristic to its corresponding Internet connectivity type. (Not all options are used.) -
correct answer ✔✔DSL = High connectivity that runs over telephone line,
Dial up telephone = typically has very low bandwidth,
Satellite = not suitable for heavy wooded areas,
Cable = uses coaxial cable as medium
What two criteria are used to help select a network medium from various network media? (Choose two.)
- correct answer ✔✔the distance the selected medium can successfully carry a signal,
the environment where the selected medium is to be installed
What type of network traffic requires QoS? - correct answer ✔✔video conferencing
A user is implementing security on a small office network. Which two actions would provide the
minimum security requirements for this network? (Choose two.) - correct answer ✔✔implementing a
firewall,
installing antivirus software
Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces
that can be protected with passwords. (Choose three.) - correct answer ✔✔VTY interface,
console interface,
privileged EXEC mode
, Which interface allows remote management of a Layer 2 switch? - correct answer ✔✔the switch virtual
interface
What function does pressing the Tab key have when entering a command in IOS? - correct answer ✔✔It
completes the remainder of a partially typed word in a command.
While trying to solve a network issue, a technician made multiple changes to the current router
configuration file. The changes did not solve the problem and were not saved. What action can the
technician take to discard the changes and work with the file in NVRAM? - correct answer ✔✔Issue the
reload command without saving the running configuration.
An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What
is the purpose of using these keystrokes? - correct answer ✔✔to interrupt the ping process
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the
administrator uses a console connection to connect to the switch, which password is needed to access
user EXEC mode? - correct answer ✔✔lineconin
A technician configures a switch with these commands:
SwitchA(config)# interface vlan 1
SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0
SwitchA(config-if)# no shutdown - correct answer ✔✔SVI
Which command or key combination allows a user to return to the previous level in the command
hierarchy? - correct answer ✔✔exit
What are two characteristics of RAM on a Cisco device? (Choose two.) - correct answer ✔✔The
configuration that is actively running on the device is stored in RAM,
The contents of RAM are lost during a power cycle.
Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.)
- correct answer ✔✔RM-3-Switch-2A4,
SwBranch799
How is SSH different from Telnet? - correct answer ✔✔SSH provides security to remote sessions by
encrypting messages and using user authentication. Telnet is considered insecure and sends messages in
plaintext.
An administrator is configuring a switch console port with a password. In what order will the
administrator travel through the IOS modes of operation in order to reach the mode in which the
configuration commands will be entered? (Not all options are used.) - correct answer ✔✔Privileged EXEC
mode = Second mode,
line configuration mode = Final mode,
global configuration mode = Third mode,
user EXEC mode = First mode
What are three characteristics of an SVI? (Choose three.) - correct answer ✔✔It is not associated with
any physical interface on a switch,
GUIDE 2026/2027
In the show running-config command, which part of the syntax is represented by running-config ? -
correct answer ✔✔a keyword
An employee at a branch office is creating a quote for a customer. In order to do this, the employee
needs to access confidential pricing information from internal servers at the Head Office. What type of
network would the employee access? - correct answer ✔✔an intranet
Which statement describes the use of powerline networking technology? - correct answer ✔✔A device
connects to an existing home LAN using an adapter and an existing electrical outlet.
Match the requirements of a reliable network with the supporting network architecture. (Not all options
are used.) - correct answer ✔✔Protect the network from unauthorized access. = Security, Provide
redundant links and devices = Fault Tolerance, Expand the network without degrading the service for
existing users = Scalability
A networking technician is working on the wireless network at a medical clinic. The technician
accidentally sets up the wireless network so that patients can see the medical records data of other
patients. Which of the four network characteristics has been violated in this situation? - correct answer
✔✔security
Match each characteristic to its corresponding Internet connectivity type. (Not all options are used.) -
correct answer ✔✔DSL = High connectivity that runs over telephone line,
Dial up telephone = typically has very low bandwidth,
Satellite = not suitable for heavy wooded areas,
Cable = uses coaxial cable as medium
What two criteria are used to help select a network medium from various network media? (Choose two.)
- correct answer ✔✔the distance the selected medium can successfully carry a signal,
the environment where the selected medium is to be installed
What type of network traffic requires QoS? - correct answer ✔✔video conferencing
A user is implementing security on a small office network. Which two actions would provide the
minimum security requirements for this network? (Choose two.) - correct answer ✔✔implementing a
firewall,
installing antivirus software
Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces
that can be protected with passwords. (Choose three.) - correct answer ✔✔VTY interface,
console interface,
privileged EXEC mode
, Which interface allows remote management of a Layer 2 switch? - correct answer ✔✔the switch virtual
interface
What function does pressing the Tab key have when entering a command in IOS? - correct answer ✔✔It
completes the remainder of a partially typed word in a command.
While trying to solve a network issue, a technician made multiple changes to the current router
configuration file. The changes did not solve the problem and were not saved. What action can the
technician take to discard the changes and work with the file in NVRAM? - correct answer ✔✔Issue the
reload command without saving the running configuration.
An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What
is the purpose of using these keystrokes? - correct answer ✔✔to interrupt the ping process
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the
administrator uses a console connection to connect to the switch, which password is needed to access
user EXEC mode? - correct answer ✔✔lineconin
A technician configures a switch with these commands:
SwitchA(config)# interface vlan 1
SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0
SwitchA(config-if)# no shutdown - correct answer ✔✔SVI
Which command or key combination allows a user to return to the previous level in the command
hierarchy? - correct answer ✔✔exit
What are two characteristics of RAM on a Cisco device? (Choose two.) - correct answer ✔✔The
configuration that is actively running on the device is stored in RAM,
The contents of RAM are lost during a power cycle.
Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.)
- correct answer ✔✔RM-3-Switch-2A4,
SwBranch799
How is SSH different from Telnet? - correct answer ✔✔SSH provides security to remote sessions by
encrypting messages and using user authentication. Telnet is considered insecure and sends messages in
plaintext.
An administrator is configuring a switch console port with a password. In what order will the
administrator travel through the IOS modes of operation in order to reach the mode in which the
configuration commands will be entered? (Not all options are used.) - correct answer ✔✔Privileged EXEC
mode = Second mode,
line configuration mode = Final mode,
global configuration mode = Third mode,
user EXEC mode = First mode
What are three characteristics of an SVI? (Choose three.) - correct answer ✔✔It is not associated with
any physical interface on a switch,
