Programming & Computer Science Answers

Create an application named TestSandwich_[your name] that instantiates one Sandwich object and demonstrates the use of the set and get methods. 

2.1 Describe the five principles that were followed/applied to arrive at the seven osi layers.

2.3 Describe the design issues associated with the Network layer of the OSI model.

“Network topology can simply be defined as the arrangement of the elements (links,

nodes, etc.) of a communication network”.

With reference to the foregoing statement, use a well labelled diagram, describing any three types of Network topologies and highlighting their advantages and disadvantages.

Assume you are a Network Administrator in your organisation who has been faced with various network-related issues, and have managed to resolve them effectively.

Discuss any ten (10) Network-related issues and the corresponding troubleshooting steps/ approach that you have adopted to resolve these issues. Use appropriate diagrams, images or screenshots where applicable in order to enhance your explanation.

Can there be an exception given for when a negative number is entered for the number of students as well as the age?

Write a program to display the number 1 to 14 next to one another (but with spaces in between), make a use of a loop:

BranchRouter >> HQRouter

network: 209.165.165.0

Mask: 255.255.255.252

Prefix:?

WAN Segment:

• You have been given both the network address and subnet mask for this segment. Determine how many possible addresses exist in a network with the subnet mask provided.
• (Hint: the subnet mask in this question produces a VERY SMALL network. Neither of the addresses you use for the interfaces will be anywhere close to 254 or 255). 
• Assign the first available IP address in the first subnet to the interface on the Branch router connected to the WAN link
• Assign the last available IP address in the first subnet to the interface on the HQ router connected to the WAN link
• Determine the prefix based on the given subnet mask of 255.255.255.252

Fill in the appropriate address and prefix information below. The prefix does not need to be the entire network address, but rather just the two-digit number:

Branch WAN interface IP address:_____

HQ WAN interface IP address:___

Prefix (with or without the slash):______

Given two dates D1 and D2, write a program to count the number of Saturday and sundays from D1 to D2 (including D1 and D2). The date in string format is like "8 Feb 2012"

Given a strong, write a program to print a secret message that replaces character with numbers 'a' with 1, 'b' with 2,...'z' with 26 where characters are separated by '-'