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
