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1.
Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
2. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
1. A technician has been asked to make several changes to the configuration and topology of a network and then determine the outcome of the changes. What tool can be used to determine the overall effect caused by the changes?
baselining tool
knowledge base
protocol analyzer
cable tester
2. A technician has been asked to troubleshoot an existing switched network but is unable to locate documentation for the VLAN configuration. Which troubleshooting tool allows the technician to map and discover VLAN and port assignments?
cable analyzer
network analyzer
protocol analyzer
knowledge base
1. A network administrator wants to connect two IPv6 islands. The easiest way is through a public network that uses only IPv4 equipment. What simple solution solves the problem?
Replace the devices on the public network with devices that support IPv6.
Configure RIPng on the border routers of each IPv6 island.
Configure the routers to take advantage of dual-stack technology.
Use tunneling to encapsulate the IPv6 traffic in the IPv4 protocol.
2.
Refer to the exhibit. Which address or addresses represent the inside global address?
10.1.1.2
192.168.0.100
209.165.20.25
any address in the 10.1.1.0 network
1. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)
use higher RF frequencies
allocate an additional channel
subdivide the network to reduce users on each segment
reduce the length of the local loop to 5.5 kilometers or less
use filters and splitters at the customer site to separate voice from data traffic
2. What are the three main functions of a secure VPN? (Choose three.)
accounting
authentication
authorization
data availability
data confidentiality
data integrity
1. Which two statements are correct about extended ACLs? (Choose two)
Extended ACLs use a number range from 1-99.
Extended ACLs end with an implicit permit statement.
Extended ACLs evaluate the source and destination addresses.
Port numbers can be used to add greater definition to an ACL.
Multiple ACLs can be placed on the same interface as long as they are in the same direction.
2.
Refer to the exhibit. How does this access list process a packet with the source address 10.1.1.1 and a destination of 192.168.10.13?
It is allowed because of the implicit deny any.
It is dropped because it does not match any of the items in the ACL.
It is allowed because line 10 of the ACL allows packets to 192.168.0.0/16.
It is allowed because line 20 of the ACL allows packets to the host 192.168.10.13.
1. What is the best defense for protecting a network from phishing exploits?
Schedule antivirus scans.
Schedule antispyware scans .
Schedule training for all users.
Schedule operating systems updates.
2. Which two statements are true regarding network security? (Choose two.)
Securing a network against internal threats is a lower priority because company employees represent a low security risk.
Both experienced hackers who are capable of writing their own exploit code and inexperienced individuals who download exploits from the Internet pose a serious threat to network security.
Assuming a company locates its web server outside the firewall and has adequate backups of the web server, no further security measures are needed to protect the web server because no harm can come from it being hacked.
Established network operating systems like UNIX and network protocols like TCP/IP can be used with their default settings because they have no inherent security weaknesses.
Protecting network devices from physical damage caused by water or electricity is a necessary part of the security policy.
1.
Refer to the exhibit. Router R1 has been configured for Frame Relay connectivity to routers R2 and R3. Which set of configuration options for routers R2 and R3 would provide each router connectivity to R1?
R2(config)# interface serial0/0/1
R2(config-if)# frame-relay map ip 10.1.1.1 102
R3(config)# interface serial0/0/1
R3(config-if)# frame-relay map ip 10.1.2.1 103
R2(config)# interface serial0/0/1
R2(config-if)# frame-relay map ip 10.1.1.1 102
R2(config-if)# frame-relay map ip 10.1.2.3 301
R3(config)# interface serial0/0/1
R3(config-if)# frame-relay map ip 10.1.2.1 103
R3(config-if)# frame-relay map ip 10.1.1.2 201
R2(config)# interface serial0/0/1.201 point-to-point
R2(config-if)# no frame-relay invers-arp
R3(config)# interface serial0/0/1.301 point-to-point
R3(config-if)# no frame-relay invers-arp
R2(config)# interface serial0/0/1.201 point-to-point
R2(config-if)# frame-relay interface-dlci 201
R3(config)# interface serial0/0/1.301 point-to-point
R3(config-if)# frame-relay interface-dlci 301
2.
Refer to the exhibit. Frame Relay connectivity has been configured in the network and OSPF is used as the routing protocol. Router R1 can successfully ping the router R2 serial interface. When R1 attempts to ping network 192.168.3.0/24 the ping fails. What additional configuration should be applied on all routers to remedy the problem?
Add the broadcast keyword in the Frame Relay map command on both routers.
Issue the frame-relay interface-dlci command in addition to the frame-relay map command on both router interfaces.
Remove the frame-relay map command and replace with the frame-relay interface-dlci command on both router interfaces.
Apply the no frame-relay inverse-arp command on both router interfaces.
1. What function do Network Control Protocols provide for a PPP connection?
to supply error detection
to establish and terminate data links
to provide authentication capabilities to PPP
to manage network congestion and to allow quality testing of the link
to allow multiple Layer 3 protocols to operate over the same physical link
2. Why are serial connections preferred over parallel connections for long transmission lengths?
Parallel connections do not support error checking.
Parallel connections are subject to excessive attenuation.
Parallel connections are subject to clock skew and to crosstalk between wires.
Parallel connections transmit over only two wires and therefore transmit data more slowly.
1. A company needs a WAN connection that is capable of transferring voice, video, and data at a minimum data rate of 155 Mbps. Which WAN connection is the best choice?
X.25
DSL
ATM
ISDN BRI
ISDN PRI
2. Why is the call setup time of a circuit-switched WAN implementation considered a drawback?
Routing protocols are incompatible with this function.
It restricts the communication sent to voice traffic only.
A telephone must be used to initially start transferring data.
Data cannot be transferred until a circuit has been established.
1.
Refer to the exhibit. Which two statements are true about the operation of the interfaces? (Choose two.)
Incoming traffic with VLAN ID 0 is processed by interface fa0/0.
Incoming traffic that has a VLAN ID of 2 is processed by subinterface fa0/0.2.
Both subinterfaces remain up with line protocol up, even if fa0/0 line protocol is down.
Subinterfaces use unique MAC addresses by adding the 802.1Q VLAN ID to the hardware address.
Traffic inbound on this router is processed by different subinterfaces, depending on the VLAN from which the traffic originated.
2.
Refer to the exhibit. All trunk links are operational and all VLANs are allowed on all trunk links. An ARP request is sent by computer 5. Which device or devices will receive this message?
only computer 4
computer 3 and RTR-A
computer 4 and RTR-A
computer 1, computer 2, computer 4, and RTR-A
computer 1, computer 2, computer 3, computer 4, and RTR-A
all of the computers and the router