Classic Classic Quiz CCNA 1 - Chapter 4 (Part 2) by Karen.urate Karen.urate 85 played - 11 yrs ago Chapter 4 (Part 2) QUIZ 20 QUESTIONS hard Ccna 1 Operates in the 5 GHz frequency band and offers speeds of up to 54 Mb/s. 802. 11g802. 11a802. 11b 2 Operates in the 2. 4 GHz frequency band and offers speeds of up to 54 Mbps. 802. 11g802. 11a802. 11b 3 Operates in the 2. 4 GHz frequency band and offers speeds of up to 11 Mbps. 802. 11g802. 11a802. 11b 4 Operates in the 2. 4 GHz or 5 GHz frequency bands. The typical expected data rates are 100 Mb/s to 600 Mb/s with a distance range of up to 70 meters. It is backward compatible with 802. 11a/b/g devices. 802. 11ac802. 11ad802. 11n 5 Can simultaneously operate in the 2. 4 GHz and 5. 5 GHz frequency bands providing data rates up to 450 Mb/s and 1. 3 Gb/s (1300 Mb/s. ) It is backward compatible with 802. 11a/b/g/n devices. 802. 11ac802. 11ad802. 11n 6 Also known as "WiGig". It uses a tri-band Wi-Fi solution using 2. 4 GHz, 5 GHz, and 60 GHz and offers theoretical speeds of up to 7 Gb/s. 802. 11ac802. 11ad802. 11n 7 What is one main characteristic of the data link layer? It generates the electrical or optical signals that represent the 1 or 0 on the media.It converts a stream of data bits into a predefined code.It shields the upper layer protocol from being aware of the physical medium to be used in the communication. 8 __________ a method of converting a stream of data bits into a predefined "code”. Signaling methodEncoding 9 As data travels on the media in a stream of 1s and 0s how does a receiving node identify the beginning and end of a frame? The receiving node sees the beginning of a frame by seeing a physical address.The transmitting node inserts start and stop bits into the frame. 10 What is true concerning physical and logical topologies? Logical topologies determine the media access control method used.Physical topologies display the IP addressing scheme of each network. 11 What are two characteristics of 802. 11 wireless networks? (1) They are collision-free networks. (2) They use CSMA/CD technology.(1) They use CSMA/CD technology. (2) Stations can transmit at any time.(1) They use CSMA/CA technology. (2) Collisions can exist in the networks. 12 If a data signal is absent and therefore the media is free, the device transmits the data. If signals are then detected that show another device was transmitting at the same time, all devices stop sending and try again later. Traditional forms of Ethernet use this method. Carrier sense multiple access with collision detection (CSMA/CD)Carrier sense multiple access with collision avoidance (CSMA/CA) 13 If the media is free, the device sends a notification across the media of its intent to use it. Once it receives a clearance to transmit, the device then sends the data. This method is used by 802. 11 wireless networking technologies. Carrier sense multiple access with collision detection (CSMA/CD)Carrier sense multiple access with collision avoidance (CSMA/CA) 14 All nodes compete for the use of the medium but have a plan if there are collisions. Contention-based accessControlled access 15 Each node has its own time to use the medium. Contention-based accessControlled access 16 Used by the MAC sublayer to identify the beginning and end limits of the frame. FlagsAddressingType 17 Used by the MAC sublayer to identify the source and destination nodes. FlagsAddressingType 18 Used by the LLC to identify the Layer 3 protocol. FlagsAddressingType 19 ____________ enables a number of nodes to communicate by using the same shared media. Data from only one node can be placed on the medium at any one time. Every node sees all the frames that are on the medium, but only the node to which the frame is addressed processes the contents of the frame. Logical multi-access topologyLogical ring topology 20 In a _________________, each node in turn receives a frame. If the frame is not addressed to the node, the node passes the frame to the next node. Logical multi-access topologyLogical ring topology A mistake in this Quiz ? Contact the author Commentaires
