Advanced Networking Exam 2 (pt.2)
Match the action to the corresponding command:
(1) Switch(config-if)# switchport trunk native vlan 10 =Assigns VLAN 10 for untagged traffic (2) Switch(config-if)# switchport mode trunk =Activates the current interface as trunk (3) Switch(config-if)# switchport trunk allowed vlan remove 10 =Prohibits VLAN 10 on the trunk interface
What is the factory default setting for the configuration register on Cisco routers?
0x2102
What is the bandwidth utilization efficiency of full-duplex Ethernet?
100%
A college offers classes at a nearby naval base where a remote switch is located. In order for network administrators at the college main office to manage a remote switch for SSH traffic, which destination port number should be opened and tracked on the college firewall?
22
Using legacy inter-VLAN routing, how many physical router interfaces have to be configured to support 5 VLAN's?
5
The syslog protocol uses UDP port ______ to send event notification messages across IP networks to event message collectors
514
How long is the evaluation process for Cisco IOS Release 15.0 software packages?
60 days
Which type of standard ACL is easiest to modify on a production router?
A named ACL that has not been applied yet
If an organization is changing to include Cisco IP phones in its network, what design feature must be considered to ensure voice quality?
A separate VLAN needed for voice traffic
What are two uses of an ACL?
ACLs can control which areas a host can access on a network ACLs provide a basic level of security for network access
A switch receives a packet from a PC with a source and destination MAC address that is not in it's MAC table, what will the switch do first when the packet arrives?
Adds the source MAC address to its table
The output of the "show ip route" command contains the following entry: S 10.2.0.0 [1/0] via 172.16.2.2 What value is indicated by the 1 in the [1/0] portion of the output?
Administrative Distance
A network administrator configures the border router with the command R1(config)# ip nat inside source list 4 pool corp . Which ACL is required to be configured in order for this command to function?
An access list that is numbered 4 that defines the private addresses that are affected by NAT
Which scenario would cause an ACL misconfiguration and deny all traffic?
Apply an ACL that has all deny ACE statements
Which two route source codes are automatically created within a routing table whenever a router interface is configured with an IP address and activated?
C L
Which service is provided by an automated attendant feature on a converged network?
Call routing
A network administrator has configured VLAN 99 as the management VLAN and has configured it with an IP address and subnet mask. The administrator issues the show interface vlan 99 command and notices that the line protocol is down. Which action can change the state of the line protocol to up?
Connect a host to an interface associated with VLAN 99
What are the three layers of the switch hierarchical design model?
Core Access Distribution
A new junior network intern connects a laptop to an access layer switch in the wiring closet. After configuring the terminal emulation program, the intern presses the Enter key, and S1_ATC_E2> prompt appears. What could have been done to better protect the switch?
Create a console password
Which switching method describes a switch that transfers a frame as soon as the destination MAC address is read?
Cut-through
Which message does an IPv4 host use to reply when it receives a DHCPOFFER message from a DHCP server?
DHCPREQUEST
In the process of building and maintaining a larger network, you will find that __________ routing is simpler to configure than static routing
Dynamic
A company designs its network so that the PCs in the internal network are assigned IP addresses from DHCP servers, and the packets that are sent to the Internet are translated through a NAT-enabled router. What type of NAT enables the router to populate the translation table from a pool of unique public addresses, as the PCs send packets through the router to the Internet?
Dynamic NAT
________ protocols are used to dynamically exchange routing information between routers
Dynamic routing
Which cost-effective physical network topology design is recommended when building a three-tier campus network that connects three buildings?
Extended Star
True or False? A standard ACL filters network traffic based on the destination MAC address?
False
Which two statements correctly describe the components of a router?
Flash memory does not lose its contents during a reboot ROM contains diagnostics executed on hardware modules
3. Refer to the following output for the show access-lists command. What is the significane of the 4 match(es) statement? 10 permit 192.168.1.56 0.0.0.7 20 permit 192.168.1.64 0.0.0.63 (4 match(es)) 30 deny any (8 match(es))
Four packets have been allowed through the router from PCs in the network of 192.168.1.64
Which feature on a Cisco router permits the forwarding of traffic for which there is no specific route?
Gateway of last resort
What is the purpose of a routing protocol?
It allows a router to share information about known networks with other routers
What is the purpose of entering the command ip nat inside source static tcp 192.168.10.2 80 209.165.200.223 8080 at the global configuration prompt?
It binds the inside local address and local port to the specified inside global address and global port
What is a characteristic of a default static route?
It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route
Which statement accurately describes dynamic NAT?
It provides an automated mapping of inside local to inside global ip addresses
What is the first action in the boot sequence when a switch is powered on?
Load a power-on self-test program
Which two statements describe the characteristics of load balancing?
Load balancing allows a router to forward packets over multiple paths to the same destination network Unequal cost load balancing is supported by EIGRP
What is a possible cause of runt Ethernet frames when a switch is being used?
Malfunctioning NIC
Which distinct type of VLAN is used by an administrator to access and configure a switch?
Management VLAN
An administrator issued the following commands on router R1: R1(config)# logging 192.168.10.2 R1(config)# logging trap 5 What is the result?
Messages with severity level of 6 or higher appear only on the router console output
A switch is directly connected to a PC. The switch and PC are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
No collisions will occur on this link
On which router should the show access-lists command be executed
On any router that has ACLs configured
Which statement describes a syslog server characteristic?
One advantage of viewing syslog messages on a syslog server is the ability to perform detailed searches through the data
Typically, which network device would be used to perform NAT for a corporate environment?
Router
Which command will allow a network administrator to check the IP address that is assigned to a particular MAC address?
Router# show ip dhcp binding
A network administrator wants to examine the active NAT translations on a border router. Which command would perform this task?
Router# show ip nat translations
A network administrator wants to configure a router so that only a specific interface will send and receive CDP information. Which two configuration steps will accomplish this?
Router(config-if)# cdp enable Router(config)# no cdp run
In an Ethernet network, frames smaller than 64 bytes are called _______
Runt
An administrator is troubleshooting a DHCPv4 issue on a router. By issuing the "debug ip dhcp _______" command, the administrator can watch, in real time, the IP address assignments that are performed by the router?
Server event
When an appropriate switch form factor for a network is being determined, what should be selected when fault tolerance and bandwidth availability are desired but the budget is limited?
Stackable switch
What are two reasons why an administrator might choose to use static routing rather than dynamic routing?
Static routing is more secure Static routing uses less router processing and bandwidth
Match the steps that are taken by a router in the route look up process when it receives a packet, there is no match, and the packet is eventually dropped:
Step 1 = Examining level 1 network routes for the best match Step 2 = examining child routes of the parent route for the best match Step 3 = Searching level 1 supernet routes for the best match Step 4 = Determining if a default route exists Step 5 = Dropping the packet
Which option correctly describes a switching method?
Store-and-forward: ensures that the frame is free of physical and data-link errors
A _______ network is a network that is accessed by a single route
Stub
Which two characteristics describe a converged network?
Support of voice and video both using the same switch Affordability for small and medium businesses
Which technology via the syslog protocol enhances real-time debugging by displaying the date and time associated with each monitored event?
Syslog service timestamps
Which technology allows syslog massages to be filtered to different devices based on event importance?
Syslog severity levels
What is a gateway of last resort?
The IP address of another router
An administrator has configured a DHCPv4 relay router and issued these commands: Router(config)# interface g0/0 Router(config-if)# ip address 10.0.1.1 255.255.255.0 Router(config-if)# no shutdown Router(config-if)# exit Router(config)# ip dhcp pool RELAY Router(dhcp-config)# end The clients are not receiving IP parameters from the DHCPv4 server. What is a possible cause?
The IP helper-address command is missing
What is the meaning of the number 10 in the encapsulation dot1Q 10 native router subinterface command?
The VLAN ID
An administrator wants to send log messages for all severity levels from a router to its console. Which procedure should the administrator follow to accomplish this?
The administrator needs to do nothing, because Cisco routers send log messages for all severity levels to the console by default
When a client is requesting an initial address lease from a DHCP server, why is the DHCPREQUEST message sent as a broadcast?
The client may have received offers from multiple servers, and the broadcast serves to implicitly decline those other offers
When a router learns that multiple paths are available to a destination network from the same routing protocol, which factor is considered by a router to choose the best path to forward the packet?
The lowest metric
A network administrator plugs a new PC into a switch port. The LED for that port changes to solid green. What statement best describes the current status of the port?
The port is operational and ready to transmit packets
A network administrator has examined the routing table of a router and noted that the entry for the destination network 172.16.4.0/24 begins with the letter D. What does this letter signify?
The route source was learned dynamically
Which configuration must be in place for the auto-MDIX feature to function on a switch interface?
The speed and duplex of the interface must be configured for auto detect
What would be the most common reason that a network technician would see the following Cisco switch prompt after the switch boots: Switch:
The switch operating system cannot be found
Which two statements describe static routes?
They are identified in the routing table with the prefix S They require manual reconfiguration to accommodate network changes
What is the purpose of the switch command: switchport access vlan 99?
To assign the port to a particular VLAN
What is the purpose of classifying Cisco IP routing table entries as ultimate route, level 1 route, level 1 parent route and level 2 child routes?
To explain the operation of the hierarchical structure of the routing table
What are two functions of dynamic routing protocols?
To maintain routing tables To discover the network
Why would a summarized static route be configured on a router?
To reduce the size of the routing table
For what reason would a network administrator use the show interfaces trunk command on a switch?
To view the native VLAN
In applying an ACL to a router interface, which traffic is designated as outbound?
Traffic that is leaving the router and going toward the destination host
What is the quickest way to remove a single ACE from a named ACL?
Use the "no" keyword and the sequence number of the ACE to be removed
When would a network engineer be concerned with RU's?
When purchasing a specific number of switches for a network rack
In which configuration would an outbound ACL placement be preferred over an inbound ACL placement?
When the ACL is applied to an outbound interface to filter packets coming from multiple inbound interfaces before the packets exit the interface