ITN Exam review

What is a characteristic of a WAN hub-and-spoke topology?

•  It requires that some of the branch sites be interconnected through point-to-point links.
•  It requires that every site be interconnected to each other through point-to-point links.
•  All sites require a hub device that connects to a router. 
•  The branch sites are connected to a central site through point-to-point links.​ 

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 only has an Ethernet NIC. 
•  The end-user device requires a dedicated connection because of performance requirements.
•  The end-user device needs mobility when connecting to the network. 
•  The end-user device area has a high concentration of RFI. 

Which method of data transfer allows information to be sent and received at the same time?

•  full duplex 
•  half duplex 
• multiplex
• simplex

What is the purpose of the OSI physical layer?

•  controlling access to media 
•  exchanging frames between nodes over physical network media 
•  transmitting bits across the local media 
•  performing error detection on received frames 

In fiber optic media, the signals are represented as patterns of ?

• Light
• Threads
• beeps
• stars

What type of cable is used to connect a workstation serial port to a Cisco router console port?

• Crossover

• Coaxial

• rollover (also called console)

• straight-through

What makes fiber preferable to copper cabling for interconnecting buildings? 

•  greater distances per cable run, limited susceptibility to EMI/RFI, greater bandwidth potential 
•  lower installation cost, durable connections, easily terminated 

Which is a function of the Logical Link Control (LLC) sublayer?

•  to identify which network layer protocol is being used 
•  to accept segments and package them into data units that are called packets 
•  to provide data link layer addressing 
•  to define the media access processes that are performed by the hardware 

Which statement describes a hardware feature of a Cisco 1941 router that has the default hardware configuration?

• It does not have an AUX port.
• It has three FastEthernet interfaces for LAN access.
• It has two types of ports that can be used to access the console
• It does not require a CPU because it relies on Compact Flash to run the IOS

Following default settings, what is the next step in the router boot sequence after the IOS loads from flash?

• Perform the POST routine.
• Locate and load the startup-config file from NVRAM.
• Load the bootstrap program from ROM
• Load the running-config file from RAM.