MIS 443 Exam 1

Geosynchronous wireless communication is advantageous as there is little propagation delay.

false

IP packets provide guaranteed delivery over the network.

false

IPv6 uses 32-bit addresses as opposed to the 128-bit addresses used by IPv4 allowing for a substantially larger number of possible addresses.

false

In DHCP the server temporarily reserves that address for the client and sends back to the client a REQUEST packet

false

In DNS, the root server is the first step in resolving IP Addresses into host names

false

In TCP/IP, the parts of the IP address that are used as the network and host addresses are fixed, so the network and host addresses can be determined without more information.

false

In step 5 of the DHCP process, the server sends a REQUEST (or DHCPREQUEST) packet, letting the client know that it intends to use the address.

false

Internet Message Access Protocol (IMAP) or Post Office Protocol (POP) are protocols used by a client to send messages from a mail server.

false

Polling is the process of permitting all clients to transmit or receive at any time

false

Star-Ring topology is most commonly used to implement wireless networks?

false

TCP includes a sequence number to keep track of the total number of packets sent.

false

The Internet's Transmission Control Protocol (TCP) uses the MTU to determine the minimum size of each packet in any transmission.

false

The application layer is the seventh layer of the Internet model and specifies the type of connection and the electrical signals that pass through it.

false

Top-level DNS servers are not required to delegate to second-level DNS servers.

false

Using HTTP version 1.0 a keep-alive: tells the server "please keep this connection open, I'll request more"

false

With Post Office Protocol (v3, therefore POP 3) emails remain on the mail server

false

With UDP, the order in which the packets need to be received is confirmed before the transmission.

false

With contention, a computer does not have to wait before it can transmit. A computer can transmit at anytime.

false

digital signals consist of continuous electromagnetic waves and analog signals consist of electrical pulses

false

Network layer functions include

identifying all hosts in the network

Digital transmission produces more errors than analog transmission.

false

The binary version of the IP address 74.125.43.99 is:

01001010.01111101.00101011.01100011

The hexidecimal number 4A01 when converted to binary is:

0100101000000001

Select a valid IPV6 address

2001:db8:1f70:999:de8:7648:3a49:6e8 (8 octets)

HTTPS uses port number

443

The most common Error Detection Method is......

CRC (Cyclical Redundancy Check)

When data-frame is transmitted, there is a probability that data-frame may be lost in the transit or it is received corrupted. In the Data Link Layer, what function is responsible for this.

Error Control

The newer form of IP, version 6 (IPv6):

Has an increased address size from 32 bits to 128 bits

Each network interface on your computer is identified by a series of letters known as a MAC address

false

TCP Flags: Packets that are used to initiate a connection.

SYN

The IP header includes a count of how many networks the packet has traveled through. This is known as

TTL

What is the most common type of cabling used in networks?

Twisted pairs

An endpoint is a

combination of an IP address and a port number

The Data link layer does many tasks on behalf of upper layer. These include:

data-link layer provides layer-2 hardware addressing mechanism

The most widely used LAN protocol is:

ethernet

A Category 7 cable has a maximum frequency of 600 MHz and a maximum bandwidth of 1Gbs.

false

A DNS server listens for requests on port 80

false

A physical circuit refers to the transmission characteristics of the connection, such as the speed at which data is being sent through the connection.

false

An ARP Table is maintained by users and IT administrators.

false

An IP address is a 32-bit long binary number divided into eight octets.

false

An IP header contains the destination MAC address of each packet.

false

DNS is normally responsible for translating IP addresses to host names.

false

A protocol data unit (PDU) is a term used in telecommunications that refers to

information added or removed by a layer on the network

Anything that has to do with inter-network connections takes place at the

network layer

What do the twists in twisted pair cabling do to improve network communications?

reduces a specific type of interference, called EMI

In DHCP, how does your computer finally choose an IP address?

sends a request to the DHCP server

The fourth layer of the OSI model is called the __________ layer.

transport

A 100 MHz network cable can support between 1 and 100 MHz, or up to 100,000,000 changes per second.

true

A URL is nothing more than the address of a given unique resource on the Web.

true

A destination port number at the transport layer identifies which application on a computer should receive the data transmission.

true

A transistor is a switch that is activated by the electronic signals it receives.

true

Because there is a limit on the length of a frame that the data link layer can transmit from node to node, the transport layer breaks up the message from the application layer into several smaller segments.

true

DHCP dynamically assigns an IP address to a computer.

true

DNS uses both TCP and UDP

true

For the requests from the Web browser to be understood by the Web server, they must use the same standard protocol or language.

true

HTTP response status codes indicate whether a specific HTTP request has been successfully completed.

true

If a user's device does not know the hardware address of the destination host, the device will send a message to every host on the network asking for this address.

true

In DHCP a server listens for requests on UDP port 67. The client will listen for responses on UDP port 68

true

In the OSI model, the application layer provides a set of utilities for applications and is the end user's access to the network.

true

One of the main advantages of using a Mesh topology is that nodes can send and receive from more than one node at any given time.

true

Radio data transmission requires that each device has a radio receiver/transmitter and uses a specific frequency.

true

TCP uses a three-way handshake to establish a reliable connection. The connection is full-duplex, and both sides synchronize (SYN) and acknowledge (ACK) each other.

true

The DNS root servers have only one job: to delegate name resolution to other DNS servers.

true

The Data link layer is responsible for converting data stream into signals.

true

The Internet Protocol (IP) is one of the main protocols used at this layer, along with several other protocols for routing, testing, and encryption.

true

The data link layer accepts messages from the network layer and controls the hardware that transmits them.

true

The physical machine address is also known as a media access control address.

true

The top-level DNS servers delegate to hundreds of thousands of other top-level DNS servers.

true

With Client-Based Architecture, application software on the client computers contains presentation, application, and data access logic

true