Installing Wireless & SOHO Networks Part 1
You are installing a single 802.11g wireless network. The office space is large enough that you need three WAPs. What channels should you configure the WAPs on to avoid communication issues?
1, 6, and 11
What standard provides WLAN bandwidth of up to 54 Mbps in the 5 GHz frequency spectrum?
802.11a
A technician is tasked to implement a wireless router that will have the fastest data transfer speed at 5 GHz frequency. Which of the following standards will the technician select?
802.11ac
In an organization, the users usually connect to wireless APs and have speed of 11 Mbps. Which of the following WLAN standards is in use?
802.11b
Under ordinary situations, which of the following wireless standards offers the slowest transfer speed at 2.4 GHz frequency?
802.11b
What is a wireless standard that operates at 2.4 GHz frequency and provides wireless speeds of up to 11 Mbps. It uses direct-sequence spread spectrum (DSSS) for data encoding?
802.11b
What is a wireless standard that operates at 2.4 GHz frequency. It is backward compatible with 802.11b and provides data transmission of up to 54 Mbps?
802.11g
Smith, a technician, needs to configure a wireless network for a company. Which wireless standard can he choose to get 600 Mbps bandwidth over either the 2.4 GHz or 5 GHz frequency spectrum?
802.11n
Which of the following channels would commonly be used on an 802.11b/g wireless network?
A. 2.4 GHz band B. 1, 6, and 11 are the only non-overlapping channels
Which of the following wireless IEEE standards operate on the 2.4 GHz radio frequency and are directly compatible with each other?
A. 802.11b B. 802.11g
You are setting up a wireless network. Which wireless standards would give the users over 40 Mbps throughput?
A. 802.11g-(54 Mbps) B. 802.11n-(600 Mbps) C.802.11ac-(1,300 Mbps)
Which of the following wireless connection types utilize MIMO on non-overlapping channels?
A. 802.11n B. 802.11ac
Which of the following is used primarily to manage sensors such as fitness trackers, medical devices, and watches?
A. ANT+ B. 2.4 GHz radio protocol C. operates at low speeds over distances up to 30 meters (98.43 ft)
Which of the following are features that allow 802.11ac to achieve higher data throughput?
A. MIMO B. Channel bonding
What can use a variety of ISM bands, with 2.4 GHz and 915 MHz bands?
A. Zigbee B. IEEE 802.15.4 PAN standard
Which of the following encryption types is used with WPA2?
Advanced Encryption Standard (AES)
Which of the following resources is the most critical when using cloud file-storage synchronization applications?
Bandwidth
What is a wireless radio technology that facilitates short-range (usually less than 30 feet) wireless communication between devices such as personal computers, laptop, mobile phones, wireless headsets, and gaming consoles, thus creating a wireless personal area network?
Bluetooth
What is a random-access memory located closer to the processor and allows the processor to execute instructions and to read and write data at a higher speed than the regular RAM. It is most often implemented with SRAM?
Cache memory
What is the combination of multiple smaller channels into one large channel for greater bandwidth?
Channel bonding
What measures the ratio of the internal bus speed to the external bus speed in a CPU?
Clock multiplier
Which of the following Internet connection types transmits digital signals over existing phone lines?
Digital Subscriber Line (DSL)
What is a packet-switching technology that involves breaking messages into chunks called packets at the sending device. Each packet can be sent over any number of routes on its way to its destination and the packets are then reassembled in the correct order at the receiving device?
Frame Relay
What is the process of adding geographical identification metadata to various media such as a geotagged photograph or video, websites, SMS messages, QR codes, or RSS feeds. It is a form of geospatial metadata?
Geotagging
What is a satellite-based navigation system that provides location and time services. It is a great technology for those who are perpetually lost, wants to know the best way to get somewhere, or want or need to track down someone else?
Global positioning system (GPS)
What is defined as a digital telephone/telecommunication network used to carry voice, data, and video over a present telephone network infrastructure and needs an ISDN modem at the end of a transmission?
Integrated Services Digital Network (ISDN)
What handles traffic between the CPU, the chipset, and RAM?
Memory bus, also known as a system bus, front side bus, local bus, or host bus
What is a WAN technology that performs label switching to forward traffic within an MPLS cloud by inserting a 32-bit header between a frame's Layer 2 and Layer 3 headers?
Multiprotocol Label Switching (MPLS)
Jennifer, a technician, wants to set up a virtual private network for a small office. She also wants to ensure that the network traffic is routed to the correct machine. Which of the following will she use on the router to accomplish this?
Port forwarding
What is a wireless technology which is most commonly used for inventory tracking, identification badges, and even implanted chips to identify pets in case they're lost?
Radio frequency identification (RFID)
Which of the following technologies can operate in the 125 kHz to 134 kHz range?
Radio frequency identification (RFID)
Which of the following wireless technologies is most commonly used for inventory tracking and identification badges?
Radio frequency identification (RFID)
What is a symmetric key encryption algorithm. It is popular with wireless and WEP/WPA encryption?
Rivest Cipher 4 (RC4)
What is an asymmetric encryption algorithm for public key encryption with a variable key length and block size?
Rivest-Shamir-Adleman (RSA)
What is a code that is intended to take full or partial control of a system at the lowest levels?
Rootkit
You want to share the Internet connection of your smartphone with a laptop. Which of the following features will you use?
Tethering
You have been asked to configure a network for a small office. The wireless router is installed, and now you need to connect the client computers. What do you enter on the client computers to connect to the router?
The security passphrase
What is a symmetric encryption algorithm that encrypts data by processing each block of data three times using a different key each time?
Triple-Data Encryption Standard (3DES)
What is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message?
Wake-on-LAN (WoL)
Which of the following technologies is the most secure form of wireless encryption?
WiFi Protected Access (WPA)
What is a proprietary wireless standard which is commonly used for interoperable monitoring and remote control of home automation systems such as lighting control, thermostats, household appliances, and security system?
Z-Wave
Which is a specification for a suite of high-level communication protocols used to create personal area networks with small and low-power digital radios?
Zigbee
James, a network administrator, wants to access his company's internal website from a remote location via a wireless Internet connection. Which type of connection does he need to make this secure?
virtual private network (VPN)