Networking Quiz

What service is provided by POP3?

• Retrieves email from the server by downloading the email to the local mail application of the client.

• An application that allows real-time chatting among remote users.

• Allows remote access to network devices and servers.

• Uses encryption to provide secure remote access to network devices and servers.

What two security solutions are most likely to be used only in a corporate environment? (Choose two.)

• Virtual private networks (VPNs)

• Intrusion prevention systems (IPS)

• Antispyware

• Strong passwords

• Antivirus software

What characteristic describes antivirus software?

• Applications that protect end devices from becoming infected with malicious software.

• A network device that filters access and traffic coming into a network.

• A tunneling protocol that provides remote users with secure access into the network of an organization.

• Software on a router that filters traffic based on IP addresses or applications.

What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network?

• It checks the value of the TTL field and if it is 0, it discards the packet and sends a Destination Unreachable message to the source host.

• It checks the value of the TTL field and if it is 100, it discards the packet and sends a Destination Unreachable message to the source host.

• It decrements the value of the TTL field by 1 and if the result is 0, it discards the packet and sends a Time Exceeded message to the source host.

• It increments the value of the TTL field by 1 and if the result is 100, it discards the packet and sends a Parameter Problem message to the source host.

A client packet is received by a server. The packet has a destination port number of 69. What service is the client requesting?

• TFTP (Trivial File Transfer Protocol)

• DNS

• DHCP

• SMTP

An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections? (Choose three.)

• Generate two-way pre-shared keys.

• Configure the IP domain name on the router.

• Generate the SSH keys.

• Configure DNS on the router.

• Enable inbound vty SSH sessions.

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)

• Implements trailer with frame check sequence for error detection.

• Places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame.

• Handles communication between upper layer networking software and Ethernet NIC hardware.

• Adds Ethernet control information to network protocol data.

An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet?

• All IPv6 configured routers on the local link.

• All IPv6 enabled devices on the local link.

• All IPv6 DHCP servers.

• All IPv6 enabled devices across the network.

What are the three parts of an IPv6 global unicast address? (Choose three.)

• Global routing prefix

• Subnet ID

• Interface ID

• Subnet mask

• Broadcast address

A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.)

• Interference

• Security

• Mobility options

• Coverage area

• Extensive cabling