ISM 4220 TEST 1 QUESTIONS AND ANSWERS.
How does Netflix reduce network utilization during content delivery? - Answers - Cache
servers at ISPs
What CSP does Netflix use for transcoding? - Answers - Amazon Web Services
What is the advantage of virtualization? - Answers - Flexibility and Agility
IaaS providers offer which: servers or software? - Answers - Servers
What is the difference between Virtualization and Clustering? - Answers - Clustering =
multiple systems acting as one
Virtualization = one system acting as many
Office 365 is an example of what type of service? - Answers - SaaS
What is the biggest risk of moving to the cloud? - Answers - Disruption of services
The Internet is a collection of what? - Answers - Single networks
Who creates Internet standards? - Answers - IETF
What is the largest decimal number an octet of IP address can be? - Answers - 255
The term for multiple network conversations on a single transmission line? - Answers -
Multiplex
What happens to application messages that are large? - Answers - Fragmentation
The first network was known as? - Answers - ARPANET
Who funded the first network? - Answers - ARPA/Government
DNS servers match domain name to what? - Answers - IP Address
List the 5 layers of the network in order? - Answers - L1 = Physical
L2 = Data Link
L3 = Internet
L4 = Transport
L5 = Application
What happens to a network message as it passes from layer 4 to 5? - Answers -
Fragmentation and encapsulation
, Does the packet change during network transmission? - Answers - No
Which is the only layer that has capabilities to handle error correction? - Answers -
Layer 4 Transport
Name the location for network hardware addresses - Answers - ARP table
Which network layer handles getting messages from one network to another? - Answers
- Layer 3 Internet
Name the network equipment needed to send network messages outside the local
network - Answers - Router
What are original challenges of ARPANET? - Answers - No standards between sites
All IETF standards are based on _______ - Answers - Running code
The result of networking standards there is ____ between equipment manufacturers. -
Answers - Competition
Which layers are required to send/deliver a network message? - Answers - Layers 1-3
Networking standards govern what 3 aspects of network messages? - Answers -
Message order, semantics, and syntax
In a TCP session how many steps is the opening? - Answers - 3
What does ACK mean when talking about types of TCP packets? - Answers -
Acknowledgement reception
What is the ACK packet used for? - Answers - Error correction
In closing a TCP session what is the last packet exchanged? - Answers - A final ACK
What is used to put out of order fragmented messages back together? - Answers -
Sequence numbers
Which is known as a reliable protocol: TCP or UDP? - Answers - TCP
Which transmission protocol should be used if speed is more important than accuracy?
- Answers - UDP
In the Data Link Layer what addressing is used? - Answers - EUI-48 addresses
What packets in a TCP session do not get acknowledged? - Answers - ACK
How does Netflix reduce network utilization during content delivery? - Answers - Cache
servers at ISPs
What CSP does Netflix use for transcoding? - Answers - Amazon Web Services
What is the advantage of virtualization? - Answers - Flexibility and Agility
IaaS providers offer which: servers or software? - Answers - Servers
What is the difference between Virtualization and Clustering? - Answers - Clustering =
multiple systems acting as one
Virtualization = one system acting as many
Office 365 is an example of what type of service? - Answers - SaaS
What is the biggest risk of moving to the cloud? - Answers - Disruption of services
The Internet is a collection of what? - Answers - Single networks
Who creates Internet standards? - Answers - IETF
What is the largest decimal number an octet of IP address can be? - Answers - 255
The term for multiple network conversations on a single transmission line? - Answers -
Multiplex
What happens to application messages that are large? - Answers - Fragmentation
The first network was known as? - Answers - ARPANET
Who funded the first network? - Answers - ARPA/Government
DNS servers match domain name to what? - Answers - IP Address
List the 5 layers of the network in order? - Answers - L1 = Physical
L2 = Data Link
L3 = Internet
L4 = Transport
L5 = Application
What happens to a network message as it passes from layer 4 to 5? - Answers -
Fragmentation and encapsulation
, Does the packet change during network transmission? - Answers - No
Which is the only layer that has capabilities to handle error correction? - Answers -
Layer 4 Transport
Name the location for network hardware addresses - Answers - ARP table
Which network layer handles getting messages from one network to another? - Answers
- Layer 3 Internet
Name the network equipment needed to send network messages outside the local
network - Answers - Router
What are original challenges of ARPANET? - Answers - No standards between sites
All IETF standards are based on _______ - Answers - Running code
The result of networking standards there is ____ between equipment manufacturers. -
Answers - Competition
Which layers are required to send/deliver a network message? - Answers - Layers 1-3
Networking standards govern what 3 aspects of network messages? - Answers -
Message order, semantics, and syntax
In a TCP session how many steps is the opening? - Answers - 3
What does ACK mean when talking about types of TCP packets? - Answers -
Acknowledgement reception
What is the ACK packet used for? - Answers - Error correction
In closing a TCP session what is the last packet exchanged? - Answers - A final ACK
What is used to put out of order fragmented messages back together? - Answers -
Sequence numbers
Which is known as a reliable protocol: TCP or UDP? - Answers - TCP
Which transmission protocol should be used if speed is more important than accuracy?
- Answers - UDP
In the Data Link Layer what addressing is used? - Answers - EUI-48 addresses
What packets in a TCP session do not get acknowledged? - Answers - ACK
