Posts tagged Exam

by louisvolant

Ccna 4 Exploration V4 Module 4 Exam 100% New Update

CCNA 4 Exploration V4 Module 4 Exam 100% new Update

1. 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.

2. Which two statements are true about network attacks? (Choose two.)
Strong network passwords mitigate most DoS attacks.
Worms require human interaction to spread, viruses do not.
Reconnaissance attacks are always electronic in nature, such as ping sweeps or port scans.
** A bruteforce attack searches to try every possible password from a combination of characters.
** Devices in the DMZ should not be fully trusted by internal devices, and communication between the DMZ and internal devices should be authenticated to prevent attacks such as port redirection.

3. Users are unable to access a company server. The system logs show that the server is operating slowly because it is receiving a high level of fake requests for service. Which type of attack is occurring?
reconnaissance
access
** DoS
worm
virus
Trojan horse

4. An IT director has begun a campaign to remind users to avoid opening email messages from suspicious sources. Which type of attack is the IT director trying to protect users from?
DoS
DDoS
** virus
access
reconnaissance

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by Simon Owen Design

Ccna 4 Exploration V4 Module 8 Exam 100% New Update

CCNA 4 Exploration V4 Module 8 Exam 100% new Update

1. Which two pieces of information are typically found on a logical network diagram? (Choose two.)
cable types
connector types
• interface identifiers
• DLCI for virtual circuits
operating system versions

2. Excessive broadcasts are generally a symptom of a problem at which layer?
physical
• data link
network
transport

3. What is one example of a physical layer problem?
incorrect encapsulation
incorrect STP configuration
incorrect ARP mapping
• incorrect clock rate

4. Which two components should be taken into consideration when establishing a network baseline? (Choose two.)
• information about the network design
IP addressing allocation on the network
requirements about the service provider setup
requirements for access control lists to regulate traffic
• expected performance under normal operating conditions

5.

Refer to the exhibit. Which two steps should be taken during the process of creating network documentation? (Choose two.)
Record the information about the devices discovered in the Campus network only.
• Record the information about the devices discovered in the entire network, including the remote locations.
• Transfer any information about the devices from the network configuration table that corresponds to a component of the topology diagram.
Transfer only the Layer 2 and Layer 3 information about the devices from the network configuration table that corresponds to a component of the topology diagram.
Transfer the recorded information about the devices from the network configuration table gathered during peak network utilization that corresponds to a component of the topology diagram.

6. Which two statements are true concerning logical networking models? (Choose two.)
TCP/IP splits the lowest layer of the OSI model into two separate layers.
• The top layer of the TCP/IP model combines the functions of the top three OSI layers.
Troubleshooting with the TCP/IP model requires different techniques than with the OSI model.
The network access layer is responsible for exchanging packets between devices on a TCP/IP network.
The Internet layer provides communication between applications, such as FTP, HTTP, and SMTP on separate hosts.
• The TCP/IP network access layer corresponds to the OSI physical and data link layers.

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by mrwynd

Ccna 1 Exploration V4 Module 6 Exam 100% New Update

CCNA 1 Exploration V4 Module 6 Exam 100% new Update

CCNA 1 Exploration V4 Module 6 Exam 100% new Update

1 How many bits make up an IPv4 address?

128
64
48
32 **

2
Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks?

255.255.255.248
255.255.255.224
255.255.255.192 **
255.255.255.240
255.255.255.128
255.255.255.252

3

Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server’s properties to allow connectivity to the network?

IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.39
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.33
IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33 **
IP address: 192.168.10.39 subnet mask: 255.255.255.248 default gateway: 192.168.10.31
IP address: 192.168.10.254 subnet mask: 255.255.255.0 default gateway: 192.168.10.1

4
Refer to the exhibit. Which network prefix will work with the IP addressing scheme shown in the graphic.

/24
/16
/20
/27 **
/25
/28

5
Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?

The router has an incorrect gateway.
Host A has an overlapping network address.
Host A has an incorrect default gateway configured.
Host A has an incorrect subnet mask.
NAT is required for the host A network. **

6 What subnet mask would a network administrator assign to a network address of 172.30.1.0 if it were possible to have up to 254 hosts?

255.255.0.0
255.255.255.0 **
255.255.254.0
255.255.248.0

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CCNA 1 Exploration V4 Module 6 Exam 100% new Update

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