Network Review

What method is used to manage contention-based access on a wireless network?

CSMA/CA

what is the function of the shell in an OS

It interfaces between the users and the kernel.

what are two characteristics of fiber optic cable?

It is not affected by EMI or RFI. It is more expensive than UTP cabling is. Supports higher bandwidth

What is a characteristic of the LLC sublayer

It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.

What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?

TCP

On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

VLAN 1

what connection provides a secure CLI session with encryption to a cisco switch?

an SSH connection

two benefits of using a layered network model?

assists protocol design and prevents technology in one layer from affecting other layers

A physical layer PDU used when physically transmitting data over a medium

bits

what is a characteristic of UTP cabling?

cancellation

Where are Cisco IOS debug output messages sent by default?

console lines

What are the three primary functions provided by layer 2 data encapsulation?

data link layer addressing, detection of errors through CRC calculations, delimiting groups of buts into frames

What addresses are mapped by ARP?

destination MAC address to a destination IPv4 address

what is an advantage to using a protocol that is defined by open standard?

encourages competition and promotes choices

name assigned to data link layer PDU

frame

Crtl-Shift-6

interrupt ping process

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?

it will discard the frame

Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)

network and transport

name assigned to network layer PDU

packet

A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?

partial mesh

A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?

physical layer

what are two services provided by the OSI network layer?

routing packets toward destination encapsulating PDUs from transport layer

Which name is assigned to the transport layer PDU?

segment

What command would the technician use to see the layer 1 and layer 2 details of a switch port?

show interfaces

Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?

store-and-forward switching

which command can an admin issue on a cisco router to send debug messages to the vty lines?

terminal monitor

What are two functions of NVRAM

to retain contents when power is removed to store the startup configuration file