Intro to Networking 2 Flashcards
Grades around average
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?
62
What are two characteristics shared by TCP and UDP?
- Port numbering
- Use of checksum
What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device?
- Destination and source port numbers
What is the TCP mechanism used in congestion avoidance?
Sliding window
What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
255.255.255.192
What are two ways that TCP uses the sequence numbers in a segment?
- To identify missing segments at the destination
- To reassemble the segments at the remote location
Which two tasks are functions of the presentation layer?
- Compression
- Encryption
A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?
nslookup
Which domain name would be an example of a top-level domain?
.com
A wireless host needs to request an IP address. What protocol would be used to process the request?
DHCP
A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?
WAN
A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?
- DSL
How does quality of service help a network support a wide range of applications and services?
By providing mechanisms to manage congested network traffic
