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CCNA 2 (v + v) Chapter 3 Exam Answers - % Full
Aug 07, · / 5 (13 votes) CCNA 2 v Routing and Switching Essentials: CCNA 2: v (Exams + Answers) Online Assessment PDF File Pretest Exam Test Online Download PDF Chapter 1 Test Online Download PDF Chapter 2 Test Online Download PDF Chapter 2 SIC Practice Skills Test Online Download PDF Chapter 3 Test Online. May 27, · CCNA 2: Routing and Switching Essentials v + v+v Exam Answers semester 2 % Test Online qUIZ and FREE Download PDF File/5(19). Mar 09, · Routing and Switching Essentials v6 Companion Guide. Routing and Switching Essentials v6 Companion Guide is the official supplemental textbook for the Routing and Switching Essentials course in the Cisco Networking Academy CCNA Routing and Switching curriculum.. This course describes the architecture, components, and operations of routers and switches in a small .
Routing and switching essentials pdf download
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Assuming that the routing tables are up to date and no ARP messages are needed, after a packet leaves H1, how many times is the L2 header rewritten in the path to H2? Explain: H1 creates the first Layer 2 header. The R1 router has to examine the destination IP address to determine how the packet is to be routed.
If the packet is to be routed out another interface, as is the case with R1, the router strips the current Layer 2 header and attaches a new Layer 2 header. When R2 determines that the packet is to be sent out the LAN interface, R2 removes the Layer 2 header received from the serial link and attaches a new Ethernet header before transmitting the packet. Which type of static route is configured with a greater administrative distance to provide a backup route to a route learned from a dynamic routing protocol?
Explain: There are four basic types of static routes. Floating static routes are backup routes that are placed into the routing table if a primary route is lost. A summary static route aggregates several routes into one, reducing the of the routing table. Standard static routes are manually entered routes into the routing table. Default static routes create a gateway of last resort.
Explain: The C in a routing table indicates an interface that is up and has an IP address assigned. The S in a routing table signifies that a route was installed using the ip route command. Two of the routing table entries shown are static routes to a specific destination the The other entry S The entry with the 0. Explain: OSPF has an administrative distance ofso the floating static route must have an administrative distance higher than Because the target network is Explain: A floating static route needs to have an administrative distance that is greater than the administrative distance of the active route in routing and switching essentials pdf download routing table.
To be a backup route the floating static route must have an administrative distance greater than 90 and have a next hop address corresponding to the serial interface IP address of Branch1. Compared with dynamic routes, what are two advantages of using static routes on a router?
Choose two. Explain: Static routes are manually configured on a router. Static routes are not automatically updated and must be manually reconfigured if the network topology changes. Thus static routing improves network security because it does not make route updates among neighboring routers.
Static routes also improve resource efficiency by using less bandwidth, routing and switching essentials pdf download, and no CPU cycles are used to calculate and communicate routes. Explain: RIPv1 is a classful routing protocol, meaning it will automatically convert the subnet ID that was entered into the classful address of What is the administrative distance value that indicates the route for R2 to reach the Explain: In the R2 routing table, the route to reach network Explain: If the best match is a level 1 ultimate route then the router will forward the packet to that network, routing and switching essentials pdf download.
Level 1 parent route is a route that contains subnets and is not used to forward packets. Level 1 child routes and level 2 supernet routes are not valid routing table entries. Explain: In this example the interface in the static route is incorrect.
Explain: A level 2 child route is a subnet of a classful network and an ultimate route is any route that uses an exit interface or next hop address. Explain: There are several factors to consider when selecting a routing protocol to implement. Two of them are scalability and speed of convergence. The other options are irrelevant. Explain: A function of the Cisco Borderless Architecture access layer is providing network access to the users. Layer 2 broadcast domain aggregation, routing and switching essentials pdf download, Layer 3 routing boundaries aggregation, and high availability are distribution layer functions.
The core layer provides fault isolation and high-speed backbone connectivity. Explain: One of the functions of the distribution layer is aggregating large-scale wiring closet networks. Providing access to end users is a function of the access layer, which is the network edge. Acting as a backbone is a function of the core layer.
Explain: To maintain the MAC address table, the switch uses the source MAC address of the incoming packets and the port that the packets enter. The destination address is used to select the outgoing port. Explain: Cut-through frame forwarding reads up to only the first 22 bytes of a frame, which excludes the frame check sequence and thus invalid frames may routing and switching essentials pdf download forwarded, routing and switching essentials pdf download.
In addition to broadcast frames, frames with a destination MAC address that is not in the CAM are also flooded out all active ports. Unicast frames are not always forwarded. Received frames with a destination MAC address that is associated with the switch port on which it is received are not forwarded because the destination exists on the network segment connected to that port. Explain: Access layer switches provide user access to the network. Routing and switching essentials pdf download user devices, such as PCs, access points, printers, and copiers, would require a port on a switch in order to connect to the network.
Thus, more switches are needed in the access layer than are needed in the core and distribution layers. Cut-through switching does not perform any error checking. Borderless switching is a network architecture, not a switching method.
Ingress port buffering is used with store-and-forward switching to support different Ethernet speeds, but it is not a switching method. Explain: Layer 2 switches can be configured with an IP address so that they can be remotely managed by an administrator. Layer 3 switches can use an IP address on routed ports. Layer 2 switches do not need a configured IP address to forward user traffic or act as a default gateway. A network administrator is configuring a new Cisco switch for remote management access.
Which three items must be configured on the switch for the task? Choose three, routing and switching essentials pdf download. Explain: To enable the remote management access, the Cisco switch must be configured with an IP address and a default gateway. In addition, vty lines must configured to enable either Telnet or SSH connections. Explain: With sticky secure MAC addressing, the MAC addresses can be either dynamically learned or manually configured and then stored in the address table and added to the running configuration file.
In contrast, dynamic secure MAC addressing provides for dynamically learned MAC addressing that is stored only in the address table. Explain: On a Cisco switch, an interface can be configured for one of three violation modes, specifying the action to be taken if a violation occurs:Protect — Packets with unknown source addresses are dropped until a sufficient number of secure MAC addresses are removed, or the number of maximum allowable addresses is increased.
There is no notification that a security violation has occurred. Restrict — Packets with unknown source addresses are dropped until a sufficient number of secure MAC addresses are removed, or the number of maximum allowable addresses is increased. In this mode, there is a notification that a security violation has occurred. Routing and switching essentials pdf download — The interface immediately becomes error-disabled and the port LED is turned off.
Explain: The switchport port-security command with no parameters must be entered before any other port security options. The parameter maximum 2 ensures that only the first two MAC addresses detected by the switch are allowed. The mac-address sticky option allows the switch to learn the first two MAC addresses that come into the specific port. The violation restrict option keeps track of the number of violations. The network technician routing and switching essentials pdf download it necessary to clear all VLAN information from the switch in order to incorporate a new network design.
What should the technician do to accomplish this task? When a switch receives an incoming frame with a destination MAC address that is not listed in the MAC address table, the switch forwards the frame out all ports except for the ingress port of the frame. When the destination device responds, the switch adds the source MAC address and the port on which it was received to the MAC address table. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon.
What is the missing parameter that is shown as the highlighted question mark in the graphic? Explain: The completed command would be encapsulation dot1q 7. The encapsulation dot1q part of the command enables trunking and identifies the type of trunking to use. The 7 identifies the VLAN number.
Explain: Write all of the network numbers in binary and determine the binary digits that are identical in consecutive bit positions from left to right. In this example, 23 bits match perfectly.
The wildcard mask of 0. Explain: Numbered and named access lists can be used on vty lines to control remote access. The first ACL command, access-list 5 permit The second ACL command, routing and switching essentials pdf download, access-class 5 in, applies the access list to a vty line.
The network usable IPv4 address range is The commands dhcp pool, ip default-gateway, and ip network are not valid DHCP configuration commands. The service dhcp global configuration command enables the DHCPv4 server process on the router. The ip helper-address command is issued to enable DHCP relay on the router. The ip dhcp pool command creates the name of a pool of addresses that the server can assign to hosts.
Routing and Switching Essentials 6.0 - Skills Assessment – Student Training (Updated)
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