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WorksheetsDay 3 - N&S 2nd Review - Day 3 review
Total questions: 24
Worksheet time: 12mins
The OSI model has seven layers and the DoD has four. At which layer does SMTP work in both models?
Network
Transport
Session
Application
What are IPv6 multicast addresses used for?
One-to-one communication
One-to-many communication
One-to-all communication
One-to-nearest communication
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
Which IPv6 address type is used for one-to-nearest communication?
Broadcast
Unicast
Multicast
Anycast
Which field is used in an IPv6 header to identify that an extension header follows?
Next header
Flow Label
Destination Address
Source Address
Which type of IPv6 unicast address is used on the internet?
Unspecified
Global
Loopback
Link-local
How large is a basic IPv6 header?
It is variable
64 bits
40 bytes
20 bytes
Which ICMPv6 packet type is used to identify that the hop limit has been exceeded for a packet?
2
128
133
3
Approximately, how many /48 networks are available in the current IPv6 global unicast space?
4.2 million
35 million
35 trillion
4.2 billion
FTP lets you transfer files across an IP network.
True
False
______ used for secure and encrypted file transfers.
TFTP
FTP
SFTP
None
H.323 is designed to operate above the transport layer of the underlying network.
True
False
______ is developed to simplify network management.
SNMP
FTP
SFTP
TCP
SSH or Secure Shell is a cryptographic network protocol for operating network services securely.
True
False
You need to have secure communications using HTTPS. What port number is used by default?
69
23
21
443
What protocol is used to find the hardware address of a local device?
RARP
ARP
IP
ICMP
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.
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
Which of the following protocols is used by email servers to exchange messages with one another?
POP3
IMAP
SMTP
HTTP
Which protocol will provide a GUI interface to your work computer?
Telnet
RDP
IMAP
SMTP
You need to transfer files between two hosts. Which two protocols can you use?
RIP
FTP
NTP
TFTP
What layer in the IP stack is equivalent to the Transport layer of the OSI model?
Application
Host to Host
Internet
Network Access
Which of the following uses both TCP and UDP?
FTP
SMTP
Telnet
DNS
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
