TCP/IP STRUCTURE AND ADDRESSING

Which two of the following are considered reserved IP addresses? (Choose two.)

0.x.y.z and 127.x.y.z

Which is the valid Class A IP address range available to network hosts?

1.hhh.hhh.hhh-126.hhh.hhh.hhh

Which are considered private Internet protocol (IP) addresses? (Choose three.)

10.0.0.0 172.31.255.255 192.168.0.0

Which is the valid Class B IP address range?

128.001.hhh.hhh-191.254.hhh.hhh

Which is a valid Class B network address?

151.129.89.76

Telnet is a protocol in which TCP/IP layer?

Application

Transmission control protocol (TCP) includes which three types mechanisms to ensure reliable data transmission? (Choose three.)

Checksum /Acknowledgements /Sequence number

What must the Network Layer do to a received frame first in order to determine the route over which it will forward the datagram to the next network?

Decapsulate the packet.

The Open Systems Interconnection Reference Model (OSI/RM) Data Link Layer serves which primary purpose?

It builds a flat network model with unroutable physical addresses.

Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM) Presentation Layer?

It defines the format in which Application Layer information is sent across the network.

Which of the following is the primary purpose of the Open Systems Intérconnection Reference Model (OS/RM) Transport Layer?

It defines well known logical port addresses for communications between applications.

Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM) Session Layer?

It establishes, manages, and terminates dialogs between Presentation Layer entities.

The Open Systems Interconnection Reference Model (OSI/RM) Application Layer serves which primary purpose?

It provides the user interface to the system.

The Open Systems Interconnection reference model (OSI/RM) Physical Layer serves which primary purpose?

It transmits data in the form of bits across the physical medium.

The Open Systems Interconnection Reference Model (OSI/RM) Network Layer serves which primary purpose?

It uses Layer 3 (Network Layer) addresses to create multiple routed networks.

Which open systems interconnection (OSI) model layer do routers support?

Layer 3, the Network Layer.

A Class D address is also known as which type of address?

Multicast

Which TCP/IP Application Layer protocol allows companies to publicly post information over the Internet?

Network News Transfer Protocol (NNTP)

Which device provides the connection point between a workstation or personal computer (PC) and the network?

Network interface card (NIC).

Which network device requires a device driver in order to connect hosts to the network segment?

Network interface card (NIC).

Which TCP/IP Transport Layer protocol provides an end-to-end, transaction-oriented, best-effort, connectionless service?

User datagram protocol (UDP).

At what maximum distance would you have to add a repeater to a 10Base2 network segment to prevent signal degradation?

185 m

Which is the valid Class C IP address range?

192.000.001.hhh-223.255.254.hhh

A Class C network address provides for how many network and host bits?

24 network, 8 hosts

A Class C address provides for a maximum of how many usable hosts?

254

Which three of the following are functions of the TCP/IP Internetwork Layer? (Choose three.)

A global addressing structure /Packet fragmentation /Service type requests

What does the class network number 127.x.y.z designate?

A loopback address

A hub that repeats and regenerates signals is called which type of hub?

Active.

The TCP/IP model Application Layer maps to which three Open Systems Interconnection reference model (OSI/RM) layers? (Choose three.)

Application Layer. Session Layer. Presentation Layer.

Which three of the following networking devices break up collisions? (Choose three.)

Bridge Switch Router

Which network device allows us to connect dissimilar network topologies?

Bridge.

Bridges and OSI/RM Layer 2 switches filter traffic in which way?

By building physical address to port mappings and making forwarding decisions based on these mappings.

Which TCP/IP Internetwork Layer provides troubleshooting utilities, such as ping and traceroute?

Internet Control Message Protocol (ICMP).

Which three of the following are included in the TCP/IP Internetwork Layer? (Choose three.)

Internet Group Management Protocol (IGMP). Internet protocol (IP). Address resolution protocol (ARP).

The TCP/IP model Network Interface Layer maps to which Open Systems Interconnection reference model (OS//RM) layer(s)? (Choose all that apply.)

Physical Layer Network Layer Data Link Layer

Which network device allows communication between separate IP networks?

Router.

Which network device can isolate broadcast traffic to the local network segment?

Router.

Hubs connect network hosts in which configuration?

Star

Which OSI/RM Data Link Layer 2 device creates multiple network segments, each offering the full network bandwidth?

Switch

Which three devices forward broadcast traffic? (Choose three.)

Switch. Bridge. Repeater.

Which of the following best describes an email message's communication flow through the TCP/IP model layers?

The Transport Layer breaks the data stream into pieces, which it passes to the Internetwork Layer. The Internetwork Layer adds the source and destinatiomugternet protocol (IP) addresses and forwards the packets to the Network Interface Layer. The Network Interface Layer builds frames, and converts them to bits for transport across the physical network.

Which two statements are true concerning IP addressing? (Choose two.)

The host portion should not be all 1s. The network portion bits should not be all Os.

The Internet Assigned Numbers Authority (IANA) recommends organizations use private IP addresses under which condition?

The network uses gateways, routers, or firewalls to act on the network host's behalf.