CCNA1 CH 3 STUDYGUIDE
What three application layer protocols are part of the TCP/IP protocol suite? (Choose 3) -ARP -DHCP -DNS -FTP -NAT -PPP
DHCP, DNS, FTP
A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?
HTTP, TCP, IP, Ethernet
PC-A and PC-B are both in VLAN 60. PC-A is unable to communicate with PC-B. What is the problem?
The VLAN that is used to PC-A is not in the list of allowed VLANs on the trunk.
If the default gateway is configured incorrectly on the host, what is the impact on communications
The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with hosts in other networks.
Which characteristics describes the default gateway of a host computer?
The logical address of the router interface on the same network as the host computer
Which 3 layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose 3)
application, presentation, session
Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used? Router 1(lightning bolt)Router2(lightning bolt)ISP Switch 1 Switch2 Host 1 Server
application, transport, internet, and network access layers
Which address does a NIC use when deciding whether to accept a frame?
destination MAC address
What is a benefit of using a layered model for network communications?
fostering competition among device and software vendors by enforcing the compatibility of their products.
Which PDU format is used when bits are received from the network medium by the NIC of a host?
frame
Which PDU is used when bits are received from the network medium by the NIC of a host?
frame
Which command is used to remove only VLAN 20 from a switch?
no vlan 20
network access protocol
preparing packets to be transmitted over the network media
What is the general term that is used to describe a piece of data at any later of a networking model
protocol data unit
Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?
segment
Which IEEE standard enables a wireless NIC to connect to a wireless AP that is made by a different manufacturer?
802.11
What is an advantage of network devices using open standard protocols?
A client host and a server running different operating systems can successfully exchange data.
Refer to the exhibit. HostA is attempting to contact ServerB. Which two statements correctly describe the addressing that HostA will generate in the process ? (Choose two)
A frame with the destination MAC address of RouterA A packet with the destination IP address of ServerB
Which protocol is used by a computer to find the MAC address of the default gateway on an Ethernet network?
ARP
What statement describes the function of the Address Resolution Protocol?
ARP is used to discover the MAC address of any host on the local network.
What is an advantage of using standards to develop and implement protocols?
Products from different manufacturers can interoperate successfully.
What are proprietary protocols?
Protocols developed by organizations who have control over their definition and operation
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
Segments are sent from the transport layer to the internet layer.
Which protocol is responsible for controlling the size and rate of the HTTP messages exchanged between server and client?
TCP
Which statement is true about the TCP/IP and OSI models?
The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.
Which statement is correct about network protocols
They define how messages are exchanged between the source and destination.
IANA
This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers.
ISO
This organization is the largest developer of international standards in the world for a wide variety of products and services. It is known for its Open Systems Interconnection (OSI) reference model.
What is a function of Layer 4 of the OSI model?
To describe the ordered and reliable delivery of data between source and destination
flow control
What method can be used by two computers to ensure that packets are not dropped because too much data is being sent to quickly?
encapsulation
What process is used to place one message inside another message for transfer from the source to the destination?
broadcast
What type of communication will send a message to all devices on a local area network?
application protocol
governing the way a web server and web client interact
Which address provides a unique host address for data communications at the internet layer?
logical address
transport protocol
managing the individual conversations between web servers and web clients
A computer in a given network is communicating with a specific group of computers. What type of communication is this?
multicast
At which layer of the OSI model would a logical address be encapsulated?
network layer
A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?
the MAC address of the default gateway
message sizing
the process of breaking up a long message into individual pieces before being sent over the network
Message encoding
the process of converting information from one format into another acceptable for transmission
message encapsulation
the process of placing one message format inside another message format
ISOC
this organization promotes the open development, evolution, and use of the Internet throughout the world.
