CCNA PRACTICE TEST 1 Latest Updated 2025 Questions and Answers
What is the function of SSL/TLS encryption? - correct answers-To secure
communication between web servers and browsers, ensuring data confidentiality.
What is a public key in asymmetric encryption? - correct answers-A key that is
used to encrypt data and can be shared publicly.
What is a private key in asymmetric encryption? - correct answers-A key used to
decrypt data, kept private by the recipient.
What is a MAC address filter used for? - correct answers-To control access to a
network based on the device's MAC address.
What is a security policy? - correct answers-A set of rules and guidelines that
define how a network and its resources are secured.
What is the principle of least privilege in network security? - correct answers-To
grant users the minimum level of access required to perform their tasks.
What is an antivirus program? - correct answers-Software designed to detect
and remove malicious software like viruses and malware.
,What is multi-factor authentication? - correct answers-A security process that
requires more than one method of authentication to verify a user's identity.
What is a zero-day attack? - correct answers-An attack that exploits a
vulnerability that has not yet been discovered or patched by the software vendor.
What is the purpose of the command `enable` in Cisco devices? - correct
answers-Takes the user to privileged EXEC mode.
What does the `configure terminal` command do? - correct answers-Enters
global configuration mode.
What is the function of the `hostname` command? - correct answers-Changes
the device name.
How do you save the current configuration to NVRAM? - correct answers-Use the
`copy running-config startup-config` command.
What is the default hostname for Cisco switches and routers? - correct answers-
Switch or Router.
,What does the `line console 0` command specify? - correct answers-Accesses
console configuration mode.
What is the purpose of the `password` command in line configuration? - correct
answers-Sets a password for user access.
How do you enable a password on privileged EXEC mode? - correct answers-Use
the `enable secret` command.
What is the function of the `no shutdown` command? - correct answers-Enables
an interface.
How can you verify the running configuration of a device? - correct answers-Use
the `show running-config` command.
Which command displays the status of switch interfaces? - correct answers-
`show ip interface brief`
What does the `interface vlan 1` command do? - correct answers-Accesses VLAN
1 configuration for IP management.
What command assigns an IP address to VLAN 1? - correct answers-`ip address
[IP_ADDRESS] [SUBNET_MASK]`
, How do you enable remote management on a switch? - correct answers-
Configure an IP address on VLAN 1 and enable Telnet or SSH.
What is the default VLAN used for switch management? - correct answers-VLAN 1.
Which command encrypts all plain-text passwords? - correct answers-`service
password-encryption`
How do you configure a default gateway on a switch? - correct answers-`ip
default-gateway [GATEWAY_IP]`
What is the command to disable DNS lookup? - correct answers-`no ip domain-
lookup`
What does the `reload` command do? - correct answers-Reboots the device.
How do you assign a description to an interface? - correct answers-Use the
`description [TEXT]` command in interface configuration mode.
What is the purpose of the OSI model? - correct answers-To standardize network
communication and troubleshoot issues by dividing processes into seven layers.
What is the function of SSL/TLS encryption? - correct answers-To secure
communication between web servers and browsers, ensuring data confidentiality.
What is a public key in asymmetric encryption? - correct answers-A key that is
used to encrypt data and can be shared publicly.
What is a private key in asymmetric encryption? - correct answers-A key used to
decrypt data, kept private by the recipient.
What is a MAC address filter used for? - correct answers-To control access to a
network based on the device's MAC address.
What is a security policy? - correct answers-A set of rules and guidelines that
define how a network and its resources are secured.
What is the principle of least privilege in network security? - correct answers-To
grant users the minimum level of access required to perform their tasks.
What is an antivirus program? - correct answers-Software designed to detect
and remove malicious software like viruses and malware.
,What is multi-factor authentication? - correct answers-A security process that
requires more than one method of authentication to verify a user's identity.
What is a zero-day attack? - correct answers-An attack that exploits a
vulnerability that has not yet been discovered or patched by the software vendor.
What is the purpose of the command `enable` in Cisco devices? - correct
answers-Takes the user to privileged EXEC mode.
What does the `configure terminal` command do? - correct answers-Enters
global configuration mode.
What is the function of the `hostname` command? - correct answers-Changes
the device name.
How do you save the current configuration to NVRAM? - correct answers-Use the
`copy running-config startup-config` command.
What is the default hostname for Cisco switches and routers? - correct answers-
Switch or Router.
,What does the `line console 0` command specify? - correct answers-Accesses
console configuration mode.
What is the purpose of the `password` command in line configuration? - correct
answers-Sets a password for user access.
How do you enable a password on privileged EXEC mode? - correct answers-Use
the `enable secret` command.
What is the function of the `no shutdown` command? - correct answers-Enables
an interface.
How can you verify the running configuration of a device? - correct answers-Use
the `show running-config` command.
Which command displays the status of switch interfaces? - correct answers-
`show ip interface brief`
What does the `interface vlan 1` command do? - correct answers-Accesses VLAN
1 configuration for IP management.
What command assigns an IP address to VLAN 1? - correct answers-`ip address
[IP_ADDRESS] [SUBNET_MASK]`
, How do you enable remote management on a switch? - correct answers-
Configure an IP address on VLAN 1 and enable Telnet or SSH.
What is the default VLAN used for switch management? - correct answers-VLAN 1.
Which command encrypts all plain-text passwords? - correct answers-`service
password-encryption`
How do you configure a default gateway on a switch? - correct answers-`ip
default-gateway [GATEWAY_IP]`
What is the command to disable DNS lookup? - correct answers-`no ip domain-
lookup`
What does the `reload` command do? - correct answers-Reboots the device.
How do you assign a description to an interface? - correct answers-Use the
`description [TEXT]` command in interface configuration mode.
What is the purpose of the OSI model? - correct answers-To standardize network
communication and troubleshoot issues by dividing processes into seven layers.
