Quiz2 -CH-4

A) The first 24 bits, known as the Organizationally Unique Identifier, identify the manufacturer.

How can you determine the manufacturer of a NIC card based on the MAC address?

False

ICANN is responsible for restrictions on use of the .com, .org, and .net TLDs.

It allows the receiving node to determine whether the TCP segment became corrupted during transmission.

What is the purpose of the checksum TCP field?

C) vim

What text editor can be used on Linux to view and edit the contents of a configuration file?

A) MTR

What utility is the equivalent to the pathping command on a Linux system?

ping

What utility is used to verify that TCP/IP installed, bound to the NIC, configured correctly, and communicating with the network?

False

IPv4 and IPv6 use the same packet format.

Flow Label

In IPv6, what field is used to indicate what sequence of packets from one source to one or multiple destinations a packet belongs to?

True

In general, a Layer 3 or Layer 4 switch is still optimized for fast Layer 2 data handling.

ifconfig -a

On a Linux-based system, what command can be used to display TCP/IP information associated with every interface on the system?

B) False

Routing Information Protocol (RIP) is an interior gateway protocol that uses a link-state algorithm.

False

UDP provides error checking, but not sequencing.

C. ipconfig /all

What command can you utilize to display TCP/IP configuration information for each network adapter installed?

B) netstat -n

What command will list only current connections, including IP addresses and port numbers?

A) The router drops the packet and sends an ICMP TTL expired message back to the host.

What happens when a router receives a packet with a TTL of 0?

It is the time it takes for the protocol to recognize the best path in the event of a network change.

What is routing protocol convergence time defined as?

False

An IPv6 address consists of 128 bits that are written as 10 blocks of hexadecimal numbers separated by colons.

B) port numbers

At the Transport layer of the OSI, what is used to find and communicate with a particular application running on a host?

B. False

DNS follows a centralized database model, allowing for easier management of DNS records.

True

Each organization that provides host services on the public Internet is responsible for providing and maintaining DNS authoritative servers for public access.

False

TCP uses a four-step process called a four-way handshake to establish a TCP connection.

C. TCP

The IP connectionless protocol relies on what other protocol to guarantee delivery of data?

D) 127.0.0.1

Which of the following IP addresses would be a loopback IP address?

B) 2000::/3

Which of the following IPv6 addresses represents a global unicast address?

A router forwards broadcasts over the network.

Which of the following is not a task handled by a router?

sip

Which of the following protocols is used as a signaling protocol for the initial connection between hosts, but does not participate in data transfer during the session?

D) traceroute -I srv1.mycompany.com

Which traceroute command will perform a trace using ICMP echo requests instead of UDP datagrams to the host srv1.mycompany.com?

D) mycompany.com

With a FQDN of ftp1.dallas.mycompany.com, what part is the domain name?

B) show ip route

You are connected to your network's Cisco router, and need to verify the route table. What command should you enter?

The computer is configured to use DHCP, but was unable to lease an address.

You are troubleshooting a network issue on a client computer and discover that the network card has an IP address of 169.254.196.200. What does this mean?