Part 4

1. Internal and External of Routers 2. Routers:- • Router is a device which makes communication possible between two or more different networks present in different geographical locations. • It connect LAN to WAN. And it uses Data packet transmission • Two types of routers:- 1. Software Routers. 2. Hardware Routers. Manufacturers of Hardware Routers:- 1.Juniper 2.CISCO 3.Jennifer 4. D-link 5. H.P 3. Cisco produces three layers Routers:- (Cisco’s Hierarchical structure ) • Core Layer Routers:- e.g.7600,8000,9000,10000,12000………. • Distribution Layer Routers:- e.g.2650,3200,3400,3600,3800,6440,7200 … • Access Layer Routers:- e.g.800,1600,1700,2500,2600…….. 4. Categories of Router:- • Routers are Categorized into 2 Categories 1. Modular 2. Non-modular • Modular :- up gradations can be done , empty slots are available e.g. 1720, Above 2600 series • Non-modular :- No up gradations can be done, fixed ports are present. E.g. 700series ..to 2500series Routers. 5. Internal Configuration:- POST ROM FLASH NVRAM RAM It checks the Hardware of Router Bootstrap program is located here.It is like BIOS in computer and Size is up to 1.5MB Internet work operating system developed by cisco stored here.and size 16MB It is similar to Hard disk. Permanent or Startup-config stored here.And size up to 32KB Temporary or Running-config stored here.And size is 2MB - 8MB. 6. Ports of Routers:- Three types of port are present:- • LAN Ports:- 1. AUI (Attachment unit interface):-15pin 2. Ethernet port • WAN Ports:- 1. Serial port;-(s0, s1..) 60-pin 2. BRI:- For ISDN RJ45 • Administrative Ports:- 1. Console port 2. Aux Port 7. Modes of Routers:- • User Mode:- Only some monitoring • Privileged Mode:- monitoring and some troubleshooting • Global Configuration mode:- All Configuration • Interface mode:- Configuration of that interface • Rommon Mode:- Password recovery 8. Initial Configuration:- • How to change Telnet password:- BANGLORE#config t BANGLORE(config)#line vty 0 4 BANGLORE(config-line)#login BANGLORE(config-line)#password ccna/ccnp/cisco BANGLORE(config-line)#exit • How to change console password:- BANGLORE#config t BANGLORE(config)#line console 0 BANGLORE(config-line)#login BANGLORE(config-line)#password ccna/ccnp/cisco BANGLORE(config-line)#exit 9. • How to change Aux password:- BANGLORE#config t BANGLORE(config)#line aux 0 BANGLORE(config-line)#login BANGLORE(config-line)#password ccna/ccnp/cisco BANGLORE(config-line)#exit • How to change enable password:- BANGLORE#config t BANGLORE(config)#enable password ccna/ccnp/cisco BANGLORE(config)#exit 10. • How to assign IP address to serial port:- BANGLORE#config t BANGLORE(config)#interface serial 0 BANGLORE(config-if)#ip add 11.0.0.1 255.0.0.0 BANGLORE(config-if)#no shutdown BANGLORE(config-if)#bandwidth 64 BANGLORE(config-if)#clockrate 64000 BANGLORE(config-if)#exit • How to assign IP address to Ethernet port:- BANGLORE#config t BANGLORE(config)#interface ethernet 0 BANGLORE(config-if)#ip add 11.0.0.1 255.0.0.0 BANGLORE(config-if)#no shutdown BANGLORE(config-if)#bandwidth 64 BANGLORE(config-if)#exit 11. show commands:- show commands works only on priviledge mode router#show running-config router#show startup-config router#sh flash router#sh version router#sh controllers int s0 router#sh int e0 router#sh int s0 router#sh ip route 12. WAN Interfaces DCE • Data communication equipment. • It generates clocking. • Master. • E.g. of DCE device in leased line setup:V.35&G.703 modems & Exchange (modems and mux) • e.g.of DCE device in Dialup setup:Dialup modem DTE • Data terminal equipment. • It accept clocking • Slave. • E.g. of DTE device in leased line setup is Router. • E.g. of DTE device in Dialup setup is computer

Now you will get CCNA 2 Chapter 1 v5.0 answers

CCNA 2 Chapter 1 v5.0 answers Routing and SWitching Essentials, RSE exam, CISCO CCNA quIZ TEST ANSWERS, CCNA 2 CH 1 2014 i211555v1n1_1 Refer to the exhibit. Consider that the main power has just been restored. PC1 asks the DHCP server for IPv4 addressing. The DHCP server sends it an IPv4 address. While PC2 is still booting up, PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?​ to Fa0/1, Fa0/2, and Fa0/3 only to Fa0/1, Fa0/2, and Fa0/4 only​ to Fa0/1, Fa0/2, Fa0/3, and Fa0/4 to Fa0/1 and Fa0/2 only to Fa0/1 only​ ————————————————————————- What is a collapsed core in a network design? a combination of the functionality of the distribution and core layers a combination of the functionality of the access, distribution, and core layers a combination of the functionality of the access and core layers a combination of the functionality of the access and distribution layers ————————————————————————- A network designer must provide a rationale to a customer for a design which will move an enterprise from a flat network topology to a hierarchical network topology. Which two features of the hierarchical design make it the better choice? (Choose two.) simpler deployment for additional switch equipment easier to provide redundant links to ensure higher availability reduced cost for equipment and user training less required equipment to provide the same performance levels lower bandwidth requirements ————————————————————————- What is a basic function of the Cisco Borderless Architecture distribution layer? aggregating Layer 3 routing boundaries aggregating all the campus blocks acting as a backbone providing access to the user ————————————————————————- ABC, Inc. has about fifty hosts in one LAN. The administrator would like to increase the throughput of that LAN. Which device will increase the number of collision domains and thereby increase the throughput of the LAN? switch hub host NIC ————————————————————————- What information is added to the switch table from incoming frames? source MAC address and incoming port number destination MAC address and incoming port number destination IP address and incoming port number source IP address and incoming port number ————————————————————————- What does the term “port density” represent for an Ethernet switch? the number of available ports the numbers of hosts that are connected to each switch port the speed of each port the memory space that is allocated to each switch port ————————————————————————- What is one advantage of using the cut-through switching method instead of the store-and-forward switching method? has a lower latency appropriate for high-performance computing applications​ has a positive impact on bandwidth by dropping most of the invalid frames makes a fast forwarding decision based on the source MAC address of the frame provides the flexibility to support any mix of Ethernet speeds ————————————————————————- Which type of transmission does a switch use when the destination MAC address is not contained in the MAC address table? broadcast anycast unicast multicast ————————————————————————- What are two advantages of modular switches over fixed-configuration switches? (Choose two.) need for fewer power outlets increased scalability availability of multiple ports for bandwidth aggregation lower forwarding rates lower cost per switch ————————————————————————- Which switch form factor should be used when large port density, fault tolerance, and low price are important factors? stackable switch fixed-configuration switch modular switch rackable 1U switch ————————————————————————- What is one function of a Layer 2 switch? determines which interface is used to forward a frame based on the destination MAC address forwards data based on logical addressing learns the port assigned to a host by examining the destination MAC address duplicates the electrical signal of each frame to every port ————————————————————————- i215024v1n1_215024 Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on switch SW1 is empty? SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch. SW1 forwards the frame directly to SW2. SW2 floods the frame to all ports connected to SW2, excluding the port through which the frame entered the switch. SW1 floods the frame on all ports on the switch, excluding the interconnected port to switch SW2 and the port through which the frame entered the switch. SW1 drops the frame because it does not know the destination MAC address. ————————————————————————- What is a basic function of the Cisco Borderless Architecture access layer? provides access to the user aggregates Layer 3 routing boundaries provides high availability aggregates Layer 2 broadcast domains ————————————————————————- 3 4 ————————————————————————- What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.) to enhance user bandwidth to isolate traffic between segments to eliminate virtual circuits to create more broadcast domains to isolate ARP request messages from the rest of the network to create fewer collision domains ————————————————————————- An administrator purchases new Cisco switches that have a feature called StackPower. What is the purpose of this feature? It enables the sharing of power among multiple stackable switches. It enables many switches to be connected with a special fiber-optic power cable to provide higher bandwidth. It enables many switches to be connected to increase port density. It enables many switches to be physically stacked in an equipment rack. It enables AC power for a switch to be provided from a powered patch panel. ————————————————————————- 5 Refer to the exhibit. Fill in the blank. There are collision domains in the topology.​ 12 ————————————————————————- Fill in the blank. A network is one that uses the same infrastructure to carry voice, data, and video signals. converged ————————————————————————-6 Refer to the exhibit. Fill in the blank. There are broadcast domains in the topology.​ 5 21 What tool is important to consider for use when making hardware improvement decisions about switches? switched virtual interfaces authentication servers multilayer switching traffic flow analysis 22 What is the maximum wire speed of a single port on a 48-port gigabit switch? 1000 Mb/s 48 Mb/s 48 Gb/s 100 Mb/s 23 When the installation of a network infrastructure is being planned, which technology will allow power to be provided via Ethernet cabling to a downstream switch and its connected devices? PoE pass-through Gigabit Ethernet wireless APs and VoIP phones PoE 24 Match the function to the corresponding switch type. (Not all options are used.) Layer 2 switches [+] typically used in the access layer of a switched network [+] forward traffic based on information in the Ethernet header Multilayer switches [#] can build a routing table [#] supports a few routing protocols