226 study guide
Which two statements describe the characteristics of fiber-optic cabling? Choose two.
-Fiber-optic cabling does not conduct electricity. -Fiber-optic cabling is primarily used as backbone cabling.
what are the three parts of an IPv6 unicast address?choose three
-Interface ID -global routing prefix -subnet ID
What makes fiber preferable to copper cabling for interconnecting buildings? Choose three.
-limited susceptibility to EMI/RFI -greater bandwidth potential -greater distances per cable run
What are two main components of Cisco express forwarding(CEF)?choose two.
-routing tables -ARP tables
Which two statements are correct in a comparison of IPv4 and IPv6 packet headers
-the Source Address field name from IPv4 is kept in IPv6 -The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6
What are two actions performed by a Cisco switch? Choose two.
-utilizing the MAC address table to forward frames via the destination MAC address -using the source MAC addresses of frames to build and maintain a MAC address table
Which subnet would include the address 192.168.1.96 as a usable host address?
192.168.1.64/26
A network administrator has been issued a network address of 192.31.7.64/26. How many subnets of equal size could be created from the assigned /26 by using a /28?
4
The ARP table in a switch maps which two types of addresses together?
Layer 3 to a Layer 2 address
Using default settings, what is the next step in the router boot sequence after the IOS from flash?
Locate and load the startup-config file from NVRAM
Which service will translate private internal IP addresses into internet routable public addresses?
NAT
What information does the loopback test provide?
The TCP/IP stack on the device is working correctly.
A router boots and enters setup mode. What is the reason for this?
The configuration file is missing from NVRAM
What will a Layer 2 switch do when the destination MAC address of a received frame in the MAC table?
it forwards the frame out of all ports except for the port at which the frame was received
Which statement describes a characteristic of the traceroute utility?
it identifies the routers in the path from a source host to a destination host
what is an ISP?
it is an organization that enables individuals and businesses to connect to the internet.
What is the function of CSMA/CA in a WLAN?
it provides the mechanism for media access
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 router configuration mode would an administrator use to configure the router or telnet access
line
A network engineer is attempting to connect to a new router to perform the initial configuration. The engineer connects a rollover cable from the serial port of the AUX port on the router, then configures HyperTerminal as shown. The engineer can get a login prompt in HyperTerminal. What would fix the problem?
move the cable to the router console port
Which interface configuration mode command puts a Layer 3 switch interface into Layer 3?
no switchport
Which is a function of the "show ip route" command when used as a tool for troubleshooting network connectivity?
shows the IP address of the next hop router for each route
What information is added during encapsulation at OSI Layer 3?
source and destination IP address
What is one purpose of the TCP three-way handshake?
synchronizing sequence numbers between source and destination in preparation for data transfer
A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?
the end-user device needs mobility when connecting to the network
Why are the paired wires twisted in a CAT5 cable?
to provide electromagnetic noise cancellation
What is the purpose of ICMP messages?
to provide feedback of IP address resolution
