Cisco Systems 2 manual Answer C Explanation, Which statement about Ethernet switches is true?

Page 107

640 - 607

B.600 - 699

C.800 - 899

D.1000 - 1099

Answer: C

Explanation:

Access list exist for IPX traffic, just like they do with IP traffic. Like IP there are ranges for IPX access list. The IPX access list ranges are: 800 to 899 – standard access lists, 900 to 999 – extended access lists, and 1000 to 1099 – SAP filter access lists.

Incorrect Answers:

A is incorrect; 100-199 is the range for an extended ip access address.

C is incorrect; this is not a defined access list range.

D is incorrect; the range 1000-1099 is for SAP filter access list.

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 350-351 and 305.

Q. 172

Which statement about Ethernet switches is true?

A.Symmetric switching allows connection between ports of unlike bandwidth and does not require memory buffering.

B.Memory buffering is used to prevent a bottleneck when ports of different bandwidth are connected on a symmetric switch.

C.The latency can be reduced if the switch utilizes the store and forward method of switching. Store and forward is better for error detection.

D.The cut-trough method of switching is faster because the switch forwards the packet to the destination as soon as it reads the destination address.

Answer: D

Explanation: In cut-through mode, the switch checks the destination address (DA) as soon as the header is received and immediately begins forwarding the frame. Depending on the network transport protocol being used (connection or connectionless orientate), there is a significant decrease in latency from input port to output port. The delay in cut-through switching remains constant regardless of the size of the frame , because this switching mode starts to forward the frame as soon as the switch reads the DA.

Incorrect Answers:

A is incorrect; Symmetric switching provides evenly distributed bandwidth to each port, while asymmetric switching provides unlike, or unequal, bandwidth between some ports.

Leading the way in IT testing and certification tools, www.testking.com

- 107 -

Image 107

Contents Ccna Important Note Please Read Carefully Answer D Explanation Which command displays the configuration register setting?Answer D Incorrect AnswersAnswer B Explanation Answer C ExplanationExhibit Answer a Explanation Answer B Answer C During encapsulation in which order is information packaged?Answer E Explanation Answer A, B, E Answer F Explanation Answer a What is the result of segmenting a network with a bridge?Physical layer Data layer Network layer Transport layer Host 1-1 can ping Host Answer B, D, F Answer A, B and EAnswer A, B, D 640 Answer A, D, F Answer B, C, E Answer A, D Cable #1 Cable #2 Cable #3 Cable #4 Answer A, B 640 Answer D What is the likely cause of this problem? Answer A, C, D Answer Answer B, F 640 RIP Ospf Eigrp Igrp Answer Explanation Answer A, B, D, E Answer D Is incorrect this is not a valid command Answer B Answer D Answer A, C, D, E Answer E Which of the following are true?What is a benefit of a virtual LAN VLAN? Answer C, D Answer B Given the configuration example Answer D, E Explanation Answer A, E, F How does inter-VLAN communication take place? Which two statements about IP RIP are true? Choose twoAnswer D, F Answer A, B, C, and D CSMA/CD Answer A, D Which two statements about a bridge are true. Choose two Which statement about an IP network is true? Answer A, B, C, G 10.0.0.0 to 172.16.0.0 to 192.168.0.0 toExplanation Which statement is true? Incorrect Options Answer A, B, D ExplanationAnswer A, C, E Which two protocol tools use ICMP? Choose two Answer a and BAnswer A, C Which command successfully ping an individual IP address?One Two None Several Which commands should you use to enable Igrp routing? Answer E Answer A, B, C Explanation Answer A, B, C Answer B, DWhat is the bandwidth capacity of an Isdn B channel? Answer a Which statement about Ethernet networks is true? What is the distance limitation for 100BaseT? Which command sets the clock rate to 56 Kbps on serial0? Setup dialogue what do the square bracket indicate? Which command retrieves the configuration file from NVRAM? What is the most common Layer 2 device? SAP Hdlc ARP Novellether Answer a Answer D Answer A, C What are two components of an IPX address? Answer B, C Explanation Answer C, D, E, F Answer F Answer a and d Which two statements are true? Choose twoWhat is a backoff on an 802.3 network? What is a key use of a device hardware address? 16,382 65,534 Session Network Transport Maintenance 640 Answer A, C Explanation What are the characteristics of UDP? MAC LLC SAP LCP Tab Ctrl R Spacebar Right Arrow PPP Lapd Isdn Hdlc Answer B, C What does the command show access-list 101 list?Which two commands show your access lists? Choose two IP and IPX IP and PPP PPP and Sdlc PPP and Hdlc 640 What are two functions of Icmp protocol? Choose Two Answer C, D, E ExplanationAnswer D, E 172.37.2.55 to What does the term ‘Base’ refer to in 100BaseT? Click the task button & Place the encapsulation Answer Explanation IP-Space enable From where does the router boot? When you issue the command show version, your router returns101 What is the most common mail to device? 103 104 105 106 Which statement about Ethernet switches is true? 108 109 110 111 Answer A, B, F 113 Which operation is most likely to follow? You just entered the following command115 Answer A, B, C, D What is back off on an 802.3 network? 118 Answer B, E Which command displays access list 111?120 121 122 123 124 125 126 Answer E, F, G 128 Answer A, D Explanation 130 What are the generic parts of a network layer address? What is an advantage of local area network LAN segmentation?132 133 134 135 136 How does a bridge function? 138 What are two purposes for using switches? Choose two What is an example of a valid MAC address? 141 Answers C, D Which two physical interfaces does PPP support? Choose two143 144 145 146 147 148 149 What is the purpose of ISL and 802.lq frame tagging? 151 152 Which of the following describes isdn bri servie? 154 Answer B What do you use for loop avoidance? Choose two 156 Answer B Diagram 158 Answer A, B, E Identify the effect of Ctrl-Z? 160 161 162 163 Answer a How do you change the Console password to cisco? 165 166 167 Answer C 301 Answer D Q299Answer a 304 Answer D 302Answer C 303 Answer B, C 307 Answer B 310 Answer D 309 What is the purpose of DLCIs in Frame Relay?172 173 Answer C 318 175 176 177 178 179 180 Q327 Answer Unknown 328 Answer Unknown

Related manuals

Manual 40 pages 55.56 Kb

Manual 100 pages 60.16 Kb