number of devices. Try to differentiate this device and a WI-FI adapter. A Wi-Fi adapter is small and it connects a computer to a WI-FI network. A ______, in this case, is a more complex device that not only receives and transmits data, but also manages the network.
3.______. It is designed to connect several elements of computer equipment into one network. A device of this type has a simplier structure than a router. When devices are connected to the same network, the ______ compiles a switching table into which it writes the port number and MAC address of each network element. This ensures that data is transmitted strictly from one user to another. They differ only in the number of input ports and bandwidth. Some of them can be equipped with wireless communication modules.
4.______. This device usually has one port for connecting an external cable (for incoming traffic). The point works in several modes:
a.5.______ – the point accepts external connections to combine them into one wireless network through a Wi-Fi adapter.
b.6.______ – the point works to unite physically remote LAN networks into one network to avoid unnecessary data transfers if the receiving device is not there.
c.7.______ – the point acts as a transceiver or repeater. A weak signal that comes from another similar point is received, amplified and transmitted further to the addressee.
8.______. Cables provide signal transmission to connect different devices on a network.
9.______. NIC are usually built into a motherboard (or can be added externally) to provide information transfer between network computers.
10.______. This hardware or software device prevent attacks of hackers by blocking unauthorized connections made to a computer or LAN.
3. Look at the scheme and write the names of network hardware in the gaps:
4. Match the words from the text with their definitions:
5. Complete the sentences with the words from ex.4:
1.You can _____ network-manager package on Ubuntu easily with several commands.
2.On Windows OS you need a network adapter to connect to the Internet through a _____ or wireless _____.
3.HTTP is the protocol used to indicate how _____ are not only defined, but also _____.
4.Remember to switch the _____ on when you go on vacations.
5.Use these options to _____ and disable optional codecs.
6.The ability to guarantee the functional correctness of digital integrated circuits is the main task in the production of _____ and _____ systems.
7.Antivirus can _____ the installation of some applications.
8._____ headphones are connected via Bluetooth.
6. Put the phrases from the dialogue into correct order and answer the questions:
Beginning of the dialogue:
– Hello, I have a problem with my WI-FI router.
– Good afternoon, could you please describe your problem in details?
1) -Yes, I switched it off, unplugged all cables and then plugged in and turned on. It didn’t help.
– Ok. Let’s check your cables first and if it still doesn’t work, we will check all necessary settings: one cable, which should be connected to your computer, must be in LAN connector, the other one from our provider in WAN.
2) -Yes, please, today I tried to connect my router to the Internet but it is written «without Internet access».
– Have you already rebooted it?
3) -No, I appreciate your help, bye!
– Have a nice day, goodbye.
4) -It works! Thank you so much!
– Not at all, is there anything else I can help you with?
5) -Let me check it… Oh, does this WAN connector has a white colour?
– No, it’s a grey one, on the right side.
6) -How can I check the speed of the Internet?
– Open your browser, type «speed test» and click on the first website. Then press «start» and you will see your speed.
7) -One moment please… Yes, now everything is correct.
– Ok. Turn on your router once again and tell me if the connection appears or not.
8) -Ok, I’ll do it. Thanks!
– May I assist you with anything further?
– What was the problem?
– How was it solved?
– Have you ever had any problems with the Internet access in your company? What did you do?
7. Look at the pictures and match them with the types of network:
WAN
LAN PAN
MAN
8. Answer the questions:
– What do LAN/WAN/MAN/PAN mean?
– What are the differences between LAN and WAN?
– What are the advantages and disadvantages of using WAN?
– Can you characterize PAN?
9. Look at the statements from the dialogue and complete the rules:
a) Turn on your router once again and tell me if the connection appears or not.
b) Open your browser, type «speed test» and click on the first website.
c) Then press «start» and you will see your speed.
Imperative (повелительное наклонение):
We use the imperative to 1.______.
In positive sentence we write 2._____ form of the verb.
In negative sentence we write 3._____ before the verb.
1.a. make an offer
b. talk about abilities
c. give instructions and orders
2.a. base
b. -ing
c. second
3.a. doesn’t
b. don’t
c. didn’t
10. Complete the instruction opening the brackets:
How to upgrade Ubuntu to 23.04
_____ (to open) the «Terminal» application.
_____ (to fetch) update software list by running the sudo apt-get update command
_____ (to type) in the command «sudo apt dist-upgrade» and _____ (to press) enter
_____ (to install) update-manager-core package.
Then _____ (to upgrade) distro and _____ (to run) the command «sudo do-release-upgrade» until you get Ubuntu 23.04 version
_____ (not to switch off) your computer while updating.
_____ (not to click) on anything while updating.
Once the update is complete, _____ (to reboot) your computer