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Computers
Professional Development
Day 3 - N&S 2nd Review - Day 3 review
24 questions
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- 1. Multiple Choice
The OSI model has seven layers and the DoD has four. At which layer does SMTP work in both models?
Network
Transport
Session
Application
- 2. Multiple Choice
What are IPv6 multicast addresses used for?
One-to-one communication
One-to-many communication
One-to-all communication
One-to-nearest communication
- 3. Multiple Choice
What is the destination address of a router advertisement?
ff02::2
The address of the device that sent the router solicitation
ff02::1
The link-local address of the router
- 4. Multiple Choice
Which IPv6 address type is used for one-to-nearest communication?
Broadcast
Unicast
Multicast
Anycast
- 5. Multiple Choice
Which field is used in an IPv6 header to identify that an extension header follows?
Next header
Flow Label
Destination Address
Source Address
- 6. Multiple Choice
Which type of IPv6 unicast address is used on the internet?
Unspecified
Global
Loopback
Link-local
- 7. Multiple Choice
How large is a basic IPv6 header?
It is variable
64 bits
40 bytes
20 bytes
- 8. Multiple Choice
Which ICMPv6 packet type is used to identify that the hop limit has been exceeded for a packet?
2
128
133
3
- 9. Multiple Choice
Approximately, how many /48 networks are available in the current IPv6 global unicast space?
4.2 million
35 million
35 trillion
4.2 billion
- 10. Multiple Choice
FTP lets you transfer files across an IP network.
True
False
- 11. Multiple Choice
______ used for secure and encrypted file transfers.
TFTP
FTP
SFTP
None
- 12. Multiple Choice
H.323 is designed to operate above the transport layer of the underlying network.
True
False
- 13. Multiple Choice
______ is developed to simplify network management.
SNMP
FTP
SFTP
TCP
- 14. Multiple Choice
SSH or Secure Shell is a cryptographic network protocol for operating network services securely.
True
False
- 15. Multiple Choice
You need to have secure communications using HTTPS. What port number is used by default?
69
23
21
443
- 16. Multiple Choice
What protocol is used to find the hardware address of a local device?
RARP
ARP
IP
ICMP
- 17. Multiple Choice
Which of the following describe the DHCP Discover message?
It uses FF:FF:FF:FF:FF:FF as a Layer 2 broadcast.
It uses TCP as the Transport layer protocol.
It does not use a Layer 2 destination address.
- 18. Multiple Choice
What Layer 4 protocol is used for a Telnet connection, and what is the default port number?
IP, 6
TCP. 21
TCP, 23
ICMP, 21
- 19. Multiple Choice
Which of the following protocols is used by email servers to exchange messages with one another?
POP3
IMAP
SMTP
HTTP
- 20. Multiple Choice
Which protocol will provide a GUI interface to your work computer?
Telnet
RDP
IMAP
SMTP
- 21. Multiple Choice
You need to transfer files between two hosts. Which two protocols can you use?
RIP
FTP
NTP
TFTP
- 22. Multiple Choice
What layer in the IP stack is equivalent to the Transport layer of the OSI model?
Application
Host to Host
Internet
Network Access
- 23. Multiple Choice
Which of the following uses both TCP and UDP?
FTP
SMTP
Telnet
DNS
- 24. Multiple Choice
Which of the following allows a server to distinguish among different simultaneous requests from the same host?
They use different port numbers.
The MAC address for each one is unique.
A NAT server changes the IP address for subsequent requests
A server is unable to accept multiple simultaneous sessions
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