Certification example test
1. Which computers would be able to communicate directly (without any routers involved)
10.10.0.17/22 and 10.10.1.30/23
192.168.17.15/29 and 192.168.17.20/28
10.5.5.1/24 and 10.5.5.100/25
192.168.0.5/26 and 192.168.0.100

2. In MikroTik RouterOS, Layer-3 communication between 2 hosts can be achieved by using an address subnet of:
/29
/32
/31
/30

3. MAC layer by OSI model is also known as
Layer 2
Layer 1
Layer 3
Layer 6
Layer 7

4. The basic unit of a physical network (OSI Layer 1) is the:
Byte
Frame
Header
Bit

5. If ARP=reply-only is configured on an interface, what will this interface do
Add new IP addresses in /ip arp list
Accept all IP/MAC combinations listed in /ip arp as static entries
Accept all IP addresses listed in /ip arp as static entries
Accept all MAC-addresses listed in /ip arp as static entries
Add new MAC addresses in /ip arp list

6. Which of the following protocols / port s are used for SNMP. (Simple Network Managemnt Protocol)
UDP 161
UDP 162
TCP 123
TCP 161
TCP 25
TCP 162

7. How many IP addresses can one find in the header of an IP packet?
1
2
4
3

8. A PC with IP 192.168.1.2 can access internet, and static ARP has been set for that IP address on gateway. When the PC Ethernet card failed, the user change it with a new card and set the same IP for it.
What else should be done?
Old static ARP entry on gateway has to be updated for the new card
Another IP has to be added for Internet access
Nothing - it will work as before
MAC-address of the new card has to be changed to MAC address of old card

9. Which of the following is NOT a valid MAC Address?
80:GF:AA:67:13:5D
88:0C:00:99:5F:EF
95:B5:DD:EE:78:8A
13:16:86:53:89:43
EA:BA:AA:EE:FF:CB

10. Choose all valid hosts address range for subnet 15.242.55.62/27
15.242.55.31-15.242.55.62
15.242.55.33-15.242.55.63
15.242.55.33-15.242.55.62
15.242.55.32-15.242.55.63

11. Select which of the following are 'Public IP addresses':
172.28.73.21
192.168.0.1
172.168.254.2
10.110.50.37
11.63.72.21

12. A network ready device is directly connected to a MikroTik RouterBOARD 750 with a correct U.T.P. RJ45 functioning cable. The device is configured with an IPv4 address of 192.168.100.70 using a subnet mask of 255.255.255.252. What will be a valid IPv4 address for the RouterBOARD 750 for a successful connection to the device?

192.168.100.68/255.255.255.252
192.168.100.69/255.255.255.252
192.168.100.71/255.255.255.252
192.168.100.70/255.255.255.252

13. What is term for the hardware coded address found on an interface?
MAC Address
Interface Address
IP Address
FQDN Address

14. What protocol does ping use?
TCP
ICMP
UDP
ARP

15. Select valid MAC-address
AEC8:21F1:AA44:54FF:1111:DDAE:0212:1201
00:00:5E:80:EE:B0
G2:60:CF:21:99:H0
192.168.0.0/16

16. Collisions are possible in full-duplex Ethernet networks

17. The network address is
The first address of the subnet
The last address of the subnet
The first usable address of the subnet

18. You have a router with configuration
- Public IP :202.168.125.45/24
- Default gateway:202.168.125.1
- DNS server: 248.115.148.136, 248.115.148.137
- Local IP: 192.168.2.1/24

Mark the correct configuration on client PC to access to the Internet
IP:192.168.1.223/24 gateway:248.115.148.136
IP:192.168.2.2/24 gateway:202.168.125.45
IP:192.168.0.1/24 gateway:192.168.2.1
IP:192.168.2.115/24 gateway: 192.168.2.1
IP:192.168.2.253/24 gateway:202.168.0.1

19. Select valid subnet masks:
255.255.192.255
192.0.0.0
255.255.224.0
255.192.0.0

20. Is ARP used in the IPv6 protocol ?

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