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NEW QUESTION # 27
Refer to the exhibit.
HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?
- A. 192.168.1.1
- B. abcd.1123.0045
- C. abcd.2246.0035
- D. 192.168.7.17
- E. aabb.5555.2222
Answer: C
Explanation:
For packets destined to a host on another IP network, the destination MAC address will be the LAN interface of the router. Since the FTP server lies on a different network, the host will know to send the frame to its default gateway, which is Toronto.
NEW QUESTION # 28
A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?
- A. the EIGRP route
- B. the OSPF route
- C. all three routes
- D. the RIPv2 route
- E. the OSPF and RIPv2 routes
Answer: A
Explanation:
Explanation When one route is advertised by more than one routing protocol, the router will choose to use the routing protocol which has lowest Administrative Distance. The Administrative Distances of popular routing protocols are listed below:
NEW QUESTION # 29
In the configuration of NAT, what does the keyword overload signify?
- A. If the number of available IP addresses is exceeded, excess traffic will use the specified address pool.
- B. The pool of IP addresses has been exhausted.
- C. Multiple internal hosts will use one IP address to access external network resources.
- D. When bandwidth is insufficient, some hosts will not be allowed to access network translation.
Answer: C
Explanation:
Explanation/Reference: http://evilrouters.net/2009/07/09/configuring-basic-nat-with-overloading/
Overloading (having multiple clients all NAT'd to the same IP address) is probably the most common implementation (especially for those of us who run NAT on a Cisco box at home!).
NEW QUESTION # 30
Refer to the exhibit.
SwitchA receives the frame with the addressing shown. According to the command output also shown in the exhibit, how will SwitchA handle this frame?
- A. It will forward the frame out port Fa0/6 only.
- B. It will flood the frame out all ports except Fa0/3.
- C. It will drop the frame.
- D. It will flood the frame out all ports.
Answer: B
NEW QUESTION # 31
Refer to the exhibit.
The internetwork is using subnets of the address 192.168.1.0 with a subnet mask of
255.255.255.224. The routing protocol in use is RIP version 1. Which address could be assigned to the FastEthernet interface on RouterA?
- A. 192.168.1.64
- B. 192.168.1.192
- C. 192.168.1.31
- D. 192.168.1.190
- E. 192.168.1.127
Answer: D
NEW QUESTION # 32
DRAG DROP
Answer:
Explanation:
NEW QUESTION # 33
From which of the following attacks can Message Authentication Code (MAC) shield your network?
- A. SYN floods
- B. DDoS
- C. DoS
- D. spoofing
Answer: D
Explanation:
Explanation/Reference: Message Authentication Code (MAC) can shield your network from spoofing attacks. Spoofing, also known as masquerading, is a popular trick in which an attacker intercepts a network packet, replaces the source address of the packets header with the address of the authorized host, and reinserts fake information which is sent to the receiver. This type of attack involves modifying packet contents. MAC can prevent this type of attack and ensure data integrity by ensuring that no data has changed. MAC also protects against frequency analysis, sequence manipulation, and ciphertext-only attacks. MAC is a secure message digest that requires a secret key shared by the sender and receiver, making it impossible for sniffers to change both the data and the MAC as the receiver can detect the changes. A denial-of-service (DoS) attack floods the target system with unwanted requests, causing the loss of service to users. One form of this attack generates a flood of packets requesting a TCP connection with the target, tying up all resources and making the target unable to service other requests. MAC does not prevent DoS attacks. Stateful packet filtering is the most common defense against a DoS attack. A Distributed Denial of Service attack (DDoS) occurs when multiple systems are used to flood the network and tax the resources of the target system. Various intrusion detection systems, utilizing stateful packet filtering, can protect against DDoS attacks. In a SYN flood attack, the attacker floods the target with spoofed IP packets and causes it to either freeze or crash. A SYN flood attack is a type of denial of service attack that exploits the buffers of a device that accept incoming connections and therefore cannot be prevented by MAC. Common defenses against a SYN flood attack include filtering, reducing the SYN-RECEIVED timer, and implementing SYN cache or SYN cookies.
Topic 7, Troubleshooting
NEW QUESTION # 34
An administrator must assign static IP addresses to the servers in a network. For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address.
Which of the following should be entered into the IP properties box for the sales server?
- A. IP address: 192.168.20.30 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.25
- B. IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.9
- C. IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.20.1
- D. IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.17
- E. IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.25
Answer: A
NEW QUESTION # 35
An advertiser wants their ads to cover the full mobile screen because they believe this will be engaging.
Which placement should they use?
- A. Facebook Marketplace
- B. Facebook Feed
- C. Messenger Stones
- D. Instagram Explore
Answer: A
NEW QUESTION # 36
Which statements are true regarding ICMP packets? (Choose two.)
- A. They guarantee datagram delivery.
- B. They are encapsulated within UDP datagrams.
- C. They acknowledge receipt of TCP segments.
- D. They are encapsulated within IP datagrams.
- E. TRACERT uses ICMP packets.
Answer: D,E
Explanation:
ping may be used to find out whether the local machines are connected to the network or whether a remote site is reachable. This tool is a common network tool for determining the network connectivity which uses ICMP protocol instead of TCP/IP and UDP/IP. This protocol is usually associated with the network management tools which provide network information to network administrators, such as ping and traceroute (the later also uses the UDP/IP protocol). ICMP is quite different from the TCP/IP and UDP/IP protocols. No source and destination ports are included in its packets. Therefore, usual packet-filtering rules for TCP/IP and UDP/IP are not
applicable. Fortunately, a special "signature" known as the packet's Message type is included for
denoting the purposes of the ICMP packet. Most commonly used message types are namely, 0, 3,
4, 5, 8, 11, and 12 which represent echo reply, destination unreachable, source quench, redirect,
echo request, time exceeded, and parameter problem respectively.
In the ping service, after receiving the ICMP "echo request" packet from the source location, the
destination
NEW QUESTION # 37 
What is the bandwidth on the WAN interface of Router 1?
- A. 32 Kbit/sec
- B. 16 Kbit/sec
- C. 512 Kbit/sec
- D. 1544 Kbit/sec
- E. 64 Kbit/sec
- F. 128 Kbit/sec
Answer: B
Explanation:
Use the "show interface s0/0" to see the bandwidth set at 16Kbit/sec.
NEW QUESTION # 38
Refer to the exhibit.
Which two statements are correct? (Choose two.)
- A. The same command needs to be entered on RouterA so that hosts on the 172.16.1.0 network can reach network 10.0.0.0.
- B. This command is incorrect, it needs to specify the interface, such as s0/0/0 rather than an IP address.
- C. Adding the subnet mask is optional for the ip route command.
- D. This will allow any host on the 172.16.1.0 network to reach all known destinations beyond RouterA.
- E. This is a default route.
Answer: D,E
Explanation:
Explanation/Reference:
This is obviously the default value for the route which is set between the routers and since
it is entered in such a manner that it ensures connectivity between the stub network and
any host lying beyond RouterA.
NEW QUESTION # 39
Refer to the exhibit.
If the resume command is entered after the sequence that is shown in the exhibit, which router prompt will be displayed?
- A. Router1#
- B. Router2#
- C. Router1>
- D. Router2>
Answer: D
Explanation:
Explanation/Reference:
After resuming the telnet session by using the Enter key after it has been suspended, it will
resume back to the telnet session so it will be back to the router2> prompt.
NEW QUESTION # 40
Some routers have been configured with default routes. What are some of the advantages of using default routes? (Choose two)
- A. They establish routes that will never go down.
- B. They allow connectivity to remote networks that are not in the routing table
- C. They keep routing tables small.
- D. They require a great deal of CPU power.
- E. They direct traffic from the internet into corporate networks.
Answer: B,C
Explanation:
Explanation/Reference:
Cisco administration 101: What you need to know about default routes
Reference:
http://www.techrepublic.com/article/cisco-administration-101-what-you-need-to-know-
about-default-routes/
NEW QUESTION # 41
Refer to the exhibit.
The MAC address table is shown in its entirety. The Ethernet frame that is shown arrives at the switch.
What two operations will the switch perform when it receives this frame? (Choose two.)
- A. The switch will not forward a frame with this destination MAC address.
- B. The MAC address of 0000.00aa.aaaa will be added to the MAC Address Table.
- C. The frame will be forwarded out all active switch ports except for port fa0/0.
- D. The MAC address of ffff.ffff.ffff will be added to the MAC address table.
- E. The frame will be forwarded out all the ports on the switch.
- F. The frame will be forwarded out fa0/0 and fa0/1 only.
Answer: B,C
Explanation:
If the switch already has the MAC address in its table for the destination, it will forward the frame directly to the destination port. If it was not already in its MAC table, then they frame would have been flooded out all ports except for the port that it came from.
NEW QUESTION # 42 
- A. Only telnet protocol connections to RouterA are supported
- B. Console line connections will nevertime out due to inactivity
- C. Remote connections to RouterA using telnet will succeed
- D. At least 5 simultaneous remote connections are possible
- E. Since DHCP is not used on Fa0/1 there is not a need to use the NAT protocol
Answer: C,D
Explanation:
Explanation/Reference:
The IP address can accommodate 5 hosts at least, telnet can be accessed on the router
NEW QUESTION # 43
How can you ensure that only the MAC address of a server is allowed by switch port Fa0/1?
- A. Configure port Fa0/1 to accept connections only from the static IP address of the server.
- B. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
- C. Use a proprietary connector type on Fa0/1 that is incomputable with other host connectors.
- D. Configure the server MAC address as a static entry of port security.
Answer: D
Explanation:
Explanation/Reference:
When the MAC address is configured as static entry, no other address is allowed.
NEW QUESTION # 44
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