CCNA 1 R&S Introduction to Networks Chapter 3 QUIZ
1 What three functions are defined by network protocols to allow communication between known source and destination IP addresses? (Choose three.)
data encoding *
message size *
delivery options *
2 What is the purpose of protocols in data communications?
specifying the bandwidth of the channel or medium for each type of communication
specifying the device operating systems that will support the communication
providing the rules required for a specific type of communication to occur *
determining the electronic specifications to enable the communication
3 What type of delivery uses data link layer addresses?
local and remote delivery
local delivery *
remote delivery using routers
4 Which two message timing mechanisms are used in data communications? (Choose two.)
response timeout *
flow control *
5 What happens when two devices on the same subnet are communicating?
The host portion of the IP addresses will be different. *
The data link layer addresses are added to the IP header.
The sending device will use ARP to determine the IP address of the receiver.
The frame will be sent to the default gateway for delivery to the receiving device.
6 Which message delivery option is used when all devices need to receive the same message simultaneously?
7 Which organization develops the 802 family of standards for wired and wireless LANs and MANs?
8 Which statement is correct about network protocols?
Network protocols define the type of hardware that is used and how it is mounted in racks.
They define how messages are exchanged between the source and the destination. *
They all function in the network access layer of TCP/IP.
They are only required for exchange of messages between devices on remote networks.
9 What organization developed the OSI reference model that is used in networking?
10 What is an advantage of using standards to develop and implement protocols?
A particular protocol can only be implemented by one manufacturer.
Products from different manufacturers can interoperate successfully.*
Different manufacturers are free to apply different requirements when implementing a protocol.
Standards provide flexibility for manufacturers to create devices that comply with unique requirements.
11 Match the TCP/IP layer to the protocol, service, or application that works within that layer. (Not all options are used.)
application layer ->DNS
transport layer -> UDP
internet layer -> ICMP
network access layer -> WLAN
12 Which two components are added to the PDU at the network access layer? (Choose two.)
13 Which standards organization developed the 802.3 (Ethernet) standard?
14 Which logical address is used for delivery of data to a remote network?
destination MAC address
destination IP address *
destination port number
source MAC address
source IP address