19 Questions
When connecting two devices that are similar in regard to the pins they use to transmit, which type of cable should be used?
Crossover cable
What type of light does fiber-optic cabling typically use for transmission?
Infrared light
What should you avoid doing with a fiber optic cable when it is plugged into a networking device?
Looking into the end of the cable
What is the purpose of the cladding in optical fiber cabling?
To reflect light back into the core
What is the main difference between single-mode fiber and multimode fiber?
Single-mode fiber allows for longer transmission distances and higher data transmission rates than multimode fiber
What is the purpose of a WLAN infrastructure mode?
To use an AP as a central hub for the WLAN
Which IEEE standards use frequencies in the 2.4 GHz band for wireless communication?
802.11b and 802.11g
What characteristic makes fiber-optic cabling more secure than copper cabling?
It is less susceptible to interference
In optical fiber cabling, what does 'Tx' stand for?
Transmit
What is the main advantage of single-mode fiber over multimode fiber?
Support for longer cabling distances
What is the purpose of the outer jacket in a fiber-optic cable?
To provide physical protection to the cladding and core
What characteristic of light does wavelength refer to?
The length of one complete wave cycle
What characteristic distinguishes laser transmitters from LED transmitters?
Emitting light in a straight line
Which component of a fiber-optic cable surrounds the core and reflects light back into the core?
Cladding
What is used to connect an access point (AP) to an existing LAN switch during the installation of a WLAN?
A straight-through cable
What method does a wireless network use to avoid collisions?
Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)
What is used by WLAN devices to find each other and form an ad hoc network?
Passive scanning
Which option describes the main characteristic of wireless media?
Uses radio waves for data transmission without wire or cable
What standard defines WLAN standards as part of the 802.11 committee?
IEEE 802.11 committee
Test your knowledge about rollover cables used to connect a computer's serial port to a Cisco router or switch's console port, as well as the correct usage of crossover and straight-through cables for connecting similar and different devices. Learn about the pinouts and transmission pins used by PCs, routers, and switches.
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