Answers Please Question 25 of 40 Which protocol is used by ping and tracert? ICM

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Answers Please

Question 25 of 40
Which protocol is used by ping and tracert?
ICMP
IGMP
IMAP
HTTP

Question 26 of 40
What routing protocol would be used by an organization to connect to an ISP?

BGP
OSPF
IGMP
RIP

Question 27 of 40
A device which forwards packets based on IP address is called:

Router
Packet sniffer
Switch
Hub

Question 28 of 40
RIP is an example of what kind of routing protocol?

Path vector
Static routing
Link-state
Distance vector

Question 29 of 40
When a packet leaves a workstation for a destination on another network, which MAC address is needed to get the packet to its destination?

The MAC address of the sending workstation
The MAC address of the destination node
The MAC address of the source workstation’s default gateway
The MAC address of the destination router

Question 30 of 40
What is the address range for a private Class A network?

8.0.0.0-8.255.255.255
192.168.0.0-192.168.255.255
172.15.0.0-172.32.255.255
10.0.0.0-10.255.255.255

Question 31 of 40
What is the purpose of a subnet mask?

The subnet mask allows a workstation to know which part of the MAC address is the network portion and which part is the host portion
The subnet mask filters incoming packets according to a configured policy
The subnet mask divides the IP address into a network portion and a host portion.
The subnet mask allows the workstation to know which part of the MAC address is the OUI and the Device ID

Question 32 of 40
What is the range of TCP’s well-known ports?

0-1024
1-1023
1024-49151
49152-65535

Question 33 of 40
What process ID is associated with remote desktop protocol on this workstation?

980
4
1764
3389

Question 34 of 40
A customer has returned from a business trip and cannot connect to your company’s network. What command(s) would you most likely run to correct this lack of connectivity? (Select all that apply)

ping 127.0.0.1
ipconfig/release & ipconfig/renew
ipconfig/release & ipconfig/flushdns
nbstat -RR & netstat -apo

Question 35 of 40
Your supervisor has been reviewing unusual traffic and has come across the capture below. He doesn’t recognize the destination IP address and asks you to clarify. What do you say?

It’s just a regular IP address.
It’s a Class D address, which makes it a multicast address.
Since it’s in an unexpected range and not part of the production network, it is proof of a successful hack into the network and needs to be investigated.
It’s a Class E address, which means that this is an experimental network.

Question 36 of 40
Which of the following is a legitimate subnet mask? (Select all that apply)

225.0.0.0 .P
255.255.242.0
255.255.255.252
255.240.0.255

Question 37 of 40
Why do nodes need to use ARP to communicate effectively?

ARP enables a workstation to receive IP address, subnet mask, and default gateway information automatically from a central server
ARP resolves host names to IP addresses
ARP resolves host names to MAC addresses
ARP resolves IP addresses to MAC addresses

Question 38 of 40
OSPF is an example of what kind of routing protocol?

Distance vector
Static routing
Link-state
Path vector

Question 39 of 40
What is the protocol data unit called for layer 3 in the OSI model

Packet
frame
bit
segmaet

Question 40 of 40
Use the following output from netstat to answer the following question: What services are currently listening on this workstation?

RDP

Question 8 of 40
Your organization is migrating to a new email server and you are assisting an engineer with the firewall rules needed for the new infrastructure. What port needs to be open for the new email server to communicate with the outside world?

UDP 110
TCP 443
UDP 143
TCP 25

Question 6 of 40
What type of record is used for DNS reverse lookup?

MX
SOA
PTR
SRV

Question 7 of 40
What type of DNS record is used to specify mail servers?

Mail slots
AAAA
A
MX

Explanation / Answer

25) ICMP protocol is used by ping and tracert

27)router forwards packet based on IP.

28) RIP is an example of distance vector

29) The MAC address of the source workstation’s default gateway

30) 10.0.0.0-10.255.255.255

31) The subnet mask divides the IP address into a network portion and a host portion.

32) 0-1024

33) 3389

34) ping 127.0.0.1

37)ARP resolves IP addresses to MAC addresses

38) OSPF is an example of link state routing

39) packet

8) TCP 25

I am not sure about rest of the questions.

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