Network Protocols Quiz

Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)

• Capture traffic on the weekends when most employees are off work.

• Capture traffic during peak utilization times to get a good representation of the different traffic types.

• Only capture traffic in the areas of the network that receive most of the traffic such as the data center.

• Perform the capture on different network segments.

• Only capture WAN traffic because traffic to the web is responsible for the largest amount of traffic on a network.

What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?​

• All router interfaces will be automatically activated.

• The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.

• Each router interface will generate an IPv6 link-local address.​

• It statically creates a global unicast address on this router.​

Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.)

• application

• session

• presentation

• network

• data link

Refer to the exhibit. If PC1 is sending a packet to PC2 and routing has been configured between the two routers, what will R1 do with the Ethernet frame header attached by PC1?

• nothing, because the router has a route to the destination network

• open the header and use it to determine whether the data is to be sent out S0/0/0

• open the header and replace the destination MAC address with a new one

• remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0

What will happen if the default gateway address is incorrectly configured on a host?

• The host cannot communicate with other hosts in the local network.

• The host cannot communicate with hosts in other networks.

• A ping from the host to 127.0.0.1 would not be successful.

• The host will have to use ARP to determine the correct address of the default gateway.

• The switch will not forward packets initiated by the host.

What are two features of ARP? (Choose two.)

• When a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses.

• An ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address.

• If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.

• If no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment.

• If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.

A network administrator is adding a new LAN to a branch office. The new LAN must support 90 connected devices. What is the smallest network mask that the network administrator can use for the new network?

• 255.255.255.128

• 255.255.255.240

• 255.255.255.248

• 255.255.255.224

What are two ICMPv6 messages that are not present in ICMP for IPv4? (Choose two.)

• Neighbor Solicitation

• Destination Unreachable

• Host Confirmation

• Time Exceeded

• Router Advertisement

A client packet is received by a server. The packet has a destination port number of 80. What service is the client requesting?

• DHCP

• SMTP

• DNS

• HTTP

What is an advantage for small organizations of adopting IMAP instead of POP?

• POP only allows the client to store messages in a centralized way, while IMAP allows distributed storage.

• Messages are kept in the mail servers until they are manually deleted from the email client.

• When the user connects to a POP server, copies of the messages are kept in the mail server for a short time, but IMAP keeps them for a long time.

• IMAP sends and retrieves email, but POP only retrieves email.