WorksheetsNetworking_Exam3_StudyGuide
Total questions: 31
Worksheet time: 16mins
In a classful IP addressing schema, which class is the address 192.168.32.252?
Class A
Class B
Class C
Class D
Class E
In a classful IP addressing schema, which class is the address 64.128.72.16?
Class A
Class B
Class C
Class D
Class E
Select the PRIVATE addresses from the list below.
129.137.0.0
10.0.0.0
8.8.8.8
172.16.0.0
192.168.0.0
In a classful IP addressing schema, which class is the address 207.96.128.116?
Class A
Class B
Class C
Class D
Class E
What subnet mask is required to provide addressing for 300 hosts?
255.255.255.0
255.255.254.0
255.255.255.0
255.255.255.128
In the IP address assignment 10.53.113.0/24, what does the number 24 represent?
The number of bits assigned to the network address
The number of bits assigned to hosts on the network
The number of bits in the combined network and host bits
The number of bits used to identify a specific host on a network
An IPv4 address that contains all zeros is used to indicate __________.
this computer
default router
a computer without a NIC
a directly connected printer
The IP address 127.0.0.1 is commonly used to test network applications and is called __________.
a broadcast address
a loopback address
a multicast address
an anycast address
The IP address scheme guarantees that each computer on the Internet is assigned __________.
a unique address
a default router
a shared network
a static IP
Software displays IPv4 addresses in a notation that is more convenient for humans to understand called _______ notation.
dotted octet
hexadecimal
dotted decimal
binary
How many possible suffixes (host addresses) are available in an IPv4 Class C Address?
254
256
510
512
The primary motivation for the newer version of IP addressing arose from
flaws detected in IPv4.
the need to support real-time applications.
the need for a larger address space.
requirements necessary for tighter security on the Internet.
An IPv4 address identifies an application on a specific computer.
True
False
An Internet address is a unique binary number assigned to a host and used for all communication with the host.
True
False
To handle ambiguity that arises from overlapping address masks, Internet forwarding uses a longest prefix match.
True
False
When a fragment is lost the entire packet must be retransmitted.
True
False
The purpose of the mask field in a forwarding table is to ___________________________.
associate a datagram with a label switched path
encapsulate the payload areas of a frame
identify the next hop in the routing process
determine the quality of service requested
extract the network portion of an address
Address masks in an Internet forwarding table can never overlap.
True
False
A packet sent across a TCP/IP Internet is called an IP ______________________ .
datagram
payload
address
segment
header
Network Address Translation (NAT) allows multiple computers at a site to share a single, globally valid IP address.
True
False
Address resolution is
an algorithm used to translate a high-level protocol address into a hardware address.
a mapping between a protocol address and a hardware address.
frame binding and encapsulation of a packet.
mapping the MAC address to a specific router.
What is the purpose of the TIME TO LIVE field in the IP header?
It prevents a datagram from circulating forever in a circular path.
It prevents a datagram from seeking a destination that does not exist.
It prevents datagrams from taking a longer path to its destination.
It prevents a corrupt packet from being processed when it reaches its destination.
What is the purpose of the Dynamic Host Configuration Protocol (DHCP)?
DHCP permits a computer to be accessed by more than one IP and MAC address at one time.
DHCP allows a computer to update configuration data in a static network.
DHCP permits a computer to change its MAC address without manual configuration.
DHCP allows a computer to move to a new network and obtain configuration data without manually making the changes.
DHCP does not require each individual network to have a server. Instead, a DHCP ________ forwards requests and responses between a client and the server.
proxy
echo reply
ping
translation
relay agent
The User Datagram Protocol is characterized as end-to-end protocol. How does UDP identify an application program as an endpoint?
Protocol port numbers
IP addresses
MAC addresses
The User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) are end-to-end protocols and are in which layer of the TCP/IP model?
Layer 2 Network Interface
Layer 3 Internet
Layer 4 Transport
Layer 5 Application
Hardware failure is the most common reason for delay and packet loss.
True
False
Replay errors occur when a duplicate packet arrives causing packets to arrive out of sequence.
True
False
How does TCP handle packet loss?
Windowing
Retransmission
Acknowledgement
Sequencing
Transport protocols use ___________ to handle duplicate packets and out-of-order packet deliveries.
Sequencing
Compression
Buffering
Acknowledgement
Retransmission
Transmission Control Protocol (TCP) is connection-oriented because an application:
must request that TCP form a connection before it can transfer data and close the connection when transfer is complete.
can send data at any time but must request TCP to close the connection after all data is transmitted.
does not need to request TCP to form a connection nor close the connection when data is transmitted.
can only send data without forming a connection.
