Q.1 Tick the most appropriate type of network for each description [4] LAN
(✓)
WAN
(✓)
WLAN
(✓)
A cabled network in a building.

A network that can use satellites.

A network that connects countries.

A network that uses wireless technology.

Q2 The manager of a large company wants to replace the company’s cabled LAN with a WLAN.
Describe the features of a WLAN.

Q.3 Complete each sentence below using one item from the list. [4]
A hub An intranet A proxy server
A WAN A WLAN
(a)is a device used to connect computers together to form a LAN.
(b)is a network with restricted access.
(c)can allow networked computers to connect to the internet.
(d)is a wireless local area network.
Q.4 A large company has two separate sites both of which have a LAN. The manager of the company wants to connect the LANs to form a WAN.
(a) Name three network devices which could be found in a LAN that is not connected to a WAN.[2]
1
2
3(b) The manager wants to buy a router to connect the LANs. Describe the function of a router.

Q.5 Write a short note on LAN? Also write down its advantages and disadvantages of LAN?

Your task this week is to write a very simple spam classifier in python. it will classify messages as either spam (unwanted) or ham (wanted). the program will have a set of spam_words, words that are known to appear in spam messages. that set is included in the template file spam.pypreview the document. you will also define a spam threshold which reflects the allowed percentage of spam words in the message. you'll compute a 'spam indicator', which is the ratio of spam words to the total number of unique words in the message. if the spam indicator exceeds the spam threshold, the message is classified as spam. otherwise it is classified as ham. we'll assume that the spam threshold is a constant and has a value of 0.10. your program will prompt the user for a message and then will print the corresponding spam indicator with two decimal digits and the corresponding classification (spam or ham). the program will be case insensitive. the spam words are detected whether they are in lower case or upper case or mixed case. each word, spam or not, is counted once (even if it appears multiple times in the message.) the program will remove punctuation from the message before identifying the words and computing the spam indicator. for example '! ' must be identified as the spam word 'now'.

Who is the first president to use social media as part of his campaign strategy

Drag each label to the correct location on the imagelist the do’s and don’ts of safeguarding your password.keep yourself loggedin when you leave your computer.don’t write your password down and leave it whereothers can find it.share your password with your friends.each time you visit a website,retain the cookies on your computer.use a long password with mixed characters.