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Briefly describe how packet-switching works? How would you transmit data over the Internet, if you had an alternative to packet-switching?
What percentage of the bandwidth of the access link is consumed by the web traffic when there is no proxy server, and all requests are serviced by origin server
Compare the benefits of TCP vs. UDP. What are the major differences between the two protocols? How do these differences affect the choice of protocol
What are the sequence numbers of pending data packets (in transit, corrupted, or lost)? What are the acknowledged numbers of pending ACK packets?
What is the hardware device used to make this connection (network card, onboard port, wireless)? List the device's name as Windows sees
For each of the following network functions, write down the names of the network layers where it should/can be performed. (a) Congestion control
How are outgoing DNS packets from PC to DNS server different than incoming DNS packets from the DNS server to the PC?
Why might a company that allows its employees to work from home require that when they do so, they must use a Virtual Private Network (VPN)?
showing the memory process explaining how memory and virtual memory addressing work.
How SSL uses both asymmetric and symmetric encryption to protect the communications between web browser and web server?
the changes that will be made to the organization, you realize that this is an internal change. You want to identify the kind of internal change this is.
How many two-way 30 kHz analog voice channels can be frequency- division multiplexed in a single television channel?
Problem: Write a small summary that describes how layer 2 and layer 3 addresses function on the network.
Explain the three layers in a broadband content/service provision system. Discuss the relation of the three layers to each other.
Problem: Describe the programing of the Socket Programming by using the ICMP, Proxy Server, SMTP, Traceroute, Wireshark.
What is the default Subnet Mask of a Class A, B, and C IPv4 address? What is the IP address 255.255.255.255 used for?
The number of 2 x 2 switching elements present in an Omega network is 192. Determine the number of inputs present in this Omega network. Show proper calculation
Problem: Describe the normal HTTP request-response loop in detail. What distinguishes asynchronous requests?
use a VPN to toss the connection around from non-local random servers from all sorts of different countries and servers to make your data harder to gain access
Why is it important to understand the "well known port numbers" when using Wireshark? How can this knowledge help with looking at a packet capture?
Problem: Would a blockchain software application use an adjacency list or adjacency matrix?
Find the DNS query and response packets in the Wireshark window, and insert a screenshot containing both the request and response here.
Problem: How does the secondary name node work when the primary name node is down?
Problem: Which layers in the internet model use PDU packets? List all and provide brief description/overview of each.
Define network topology. Give one example every topology. Point to Point, Bus Topology, Ring Topology, Star Topology