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Question 1

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Če mrežno kartico postavimo v način promiscuous, lahko prisluškujemo celotnemu prometu na omrežju, kjer so računalniki priključeni na razdelilnik (hub).

If the computers are connected to a hub we will be able to see all the network traffic if we enable promiscuous mode on our network interface.

Question 1 Select one:

Question 2

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Če okvir Ethernet pošljemo na naslov broadcast, ga bomo poslali:

If we send an Ethernet frame to the broadcast address, we are sending it to:

Question 2 Select one:
a.

Dvema računalnikoma.

Two computers.

b.

Nobenemu računalniku. 

No computers.

c.

Skupini računalnikov, ki je prijavljena v naslovljeno skupino.

A group of computers subscribed to this address.

d.

Enem računalniku.

A single computer.

e.

Vsem računalnikom v omrežju.

All the computers on the network.

Question 3

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Kakšen je pomen zastavice Protected v glavi okvirja 802.11?

What does the Protected flag in the 802.11 header stand for?

Question 3 Select one:
a.

Zastavica pomeni, da uporabljamo požarni zid.

The flag is set to 1 if we are using a firewall. 

b.

Zastavica pomeni, da so podatki v tem okviru šifrirani.

When the flag is set, the data in the frame is encrypted.

c.

Zastavica pomeni, da je okvir Beacon šifriran. 

If the flag is set then the Becaon frame is encrypted.

Question 4

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V omrežju imamo računalnike A, B, C, D, ki so povezani na stikalo (switch). Računalnik A pošlje okvir na naslov ff:ff:ff:ff:ff:ff. Kateri računalniki bodo prejeli okvir? Vse mrežne kartice so v načinu promiscuous.

Computers A, B, C, D are connected to a switch. Computer A sends out a frame with the destination address ff:ff:ff:ff:ff:ff. Which computers receive the frame? All the network interfaces are in promiscious mode.

Question 4 Select one:
a.

C, D. 

b.

B, D.

c.

B, C, D.

d.

D.

e.

C.

Question 5

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Skrivanje SSID je dovolj dobra zaščita brezžičnega omrežja pred neželenimi uporabniki. 

Hidding the SSID is good protection for your wireless newtork. 

Question 5 Select one:

Question 6

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Katere od spodnjih kratic označujejo šifriranje podatkov v brezžičnih omrežjih?

Which of the following abbreviatons stand for wireless network encryption?

Question 6 Select one or more:
a.

WPA2

b.

IPSEC

c.

CryptoLink (tm)

d.

WEP

e.

WPA

Question 7

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Naslov brezžičnega omrežja SSID je:

The SSID of a wireless newtork is:

Question 7 Select one:
a.

prejemnikov naslov.

destination address.

b.

varnostni mehanizem.

security measure.

c.

strojni (MAC) naslov.

hardware (MAC) address.

d.

ime omrežja, ki si ga izmislimo, npr. linksys.

network name that we define, e.g. linksys.

Question 8

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Protokol ARP je varen protokol (težko ga je napasti).

ARP is a safe protocol that is hard to exploit. 

Question 8 Select one:

Question 9

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Naslov brezžičnega omrežja BSS ID je:

The BSS ID of a wireless newtork is:

Question 9 Select one:
a.

ime omrežja, ki si ga izmislimo, npr. linksys.

network name that we define, e.g. linksys.

b.

strojni (MAC) naslov.

hardware (MAC) address.

c.

prejemnikov naslov.

destination address.

d.

varnostni mehanizem.

security measure.

Question 10

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Če iz našega računalnika pošljemo okvir Ethernet na naslov 00:15:c5:ec:08:3f, pošiljamo:

What kind of traffic are we sending if we sent an Ethernet frame from our computer to the Ethernet address 00:15:c5:ec:08:3f:

Question 10 Select one:
a.

Neznan promet na neznan naslov.

Unknown traffic to an unknown address.

b.

Multicast promet.

Multicast.

c.

Broadcast promet.

Broadcast.

d.

Unicast promet.

Unicast.

Question 11

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Okvirji Beacon so v omrežjih 802.11 vedno šifrirani.

Beacon frames are always encrypted in 802.11 networks. 

Question 11 Select one:

Question 12

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Gigabitna omrežja Ethernet omogočajo full duplex prenos podatkov.

Gigabit Ethernet networks are full duplex networks.

Question 12 Select one:

Question 13

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V omrežju imamo računalnike A, B, C, D, ki so povezani na razdelilnik (hub). Računalnik A pošlje okvir računalniku B. Kateri računalniki bodo prejeli okvir? Vse mrežne kartice so v načinu promiscuous.

Computers A, B, C, D are connected to a hub. Computer A sends out a frame with the destination od computer B. Which computers receive the frame? All the network interfaces are in promiscious mode.

Question 13 Select one:
a.

B, D.

b.

C.

c.

C, D. 

d.

B.

e.

B, C, D.

Question 14

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Za vodovodno cev bi lahko rekli, da omogoča half-duplex "prenos" vode.

One could say that a water pipe is half-duplex water transport media.

Question 14 Select one:

Question 15

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Ukaz arp -a nam:

What does the arp -a system command do?

Question 15 Select one:
a.

ustvari statični zapis v tabeli ARP.

Creates a static ARP table entry.

b.

izpiše tabelo ARP.

It displays the ARP table.

c.

pobriše tabelo ARP.

Deletes the ARP table.

d.

pokaže privzeti prehod.

Shows the default gateway.

Question 16

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Če okvir Ethernet pošljemo na naslov multicast, ga bomo poslali:

If we send an Ethernet frame to a multicast address, we are sending it to:

Question 16 Select one:
a.

Skupini računalnikov, ki je prijavljena v naslovljeno skupino.

A group of computers subscribed to this address.

b.

Dvema računalnikoma.

Two computers.

c.

Nobenemu računalniku. 

No computers.

d.

Vsem računalnikom v omrežju.

All the computers on the network.

e.

Enem računalniku.

A single computer.

Question 17

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Kateri od naštetih protokolov nam omogoča sočasni dostop naprav do omrežja Ethernet?

Which of the following protocols enables multiple access in Ethernet networks?

Question 17 Select one:
a.

CSMA/CA

b.

TDMA

c.

FDMA

d.

CSMA/CD

e.

LLC

Question 18

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Kateri od naštetih protokolov nam omogoča sočasni dostop naprav do brezžičnega omrežja 802.11a/b/g?

Which of the following protocols enables multiple access in wireless 802.11a/b/g networks?

Question 18 Select one:
a.

CSMA/CA

b.

FDMA

c.

TDMA

d.

LLC

e.

CSMA/CD

Question 19

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Strojni naslov ff:ff:ff:ff:ff:ff je:

The ff:ff:ff:ff:ff:ff MAC address is a:

Question 19 Select one:
a.

broadcast naslov.

broadcast address.

b.

neznan naslov.

unknown address.

c.

anycast naslov.

anycast address.

d.

multicast naslov.

multicast address.

Question 20

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Okvir Ethernet ima fiksno dolžino. 

Ethernet frame has a fixed length. 

Question 20 Select one:

Question 21

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V omrežju imamo računalnike A, B, C, D, ki so povezani na stikalo (switch). Računalnik A pošlje okvir računalniku B. Kateri računalniki bodo prejeli okvir? Vse mrežne kartice so v načinu promiscuous.

Computers A, B, C, D are connected to a switch. Computer A sends out a frame with the destination od computer B. Which computers receive the frame? All the network interfaces are in promiscious mode.

Question 21 Select one:
a.

B, D.

b.

C.

c.

B, C, D.

d.

C, D. 

e.

B.

Question 22

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V brezžičnih omrežjih 802.11a/b/g poteka prenos podatkov v half-duplex načinu.

Data is transffered in half-duplex mode in 802.11a/b/g wireless networks. 

Question 22 Select one:

Question 23

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V omrežju imamo računalnike A, B, C, D, ki so povezani na razdelilnik (hub). Računalnik A pošlje okvir na naslov ff:ff:ff:ff:ff:ff. Kateri računalniki bodo prejeli okvir? Vse mrežne kartice so v načinu promiscuous.

Computers A, B, C, D are connected to a hub. Computer A sends out a frame with the destination addres ff:ff:ff:ff:ff:ff. Which computers receive the frame? All the network interfaces are in promiscious mode.

Question 23 Select one:
a.

B, C, D.

b.

B, D.

c.

D.

d.

C, D. 

e.

C.