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CHAPTER - 9
1 A technician is unsuccessful in establishing a
console session between a PC and a Linksys integrated router. Both devices have
power, and a cable is connected between them. Which two troubleshooting steps
could help to diagnose this problem? (Choose two.)
#Ensure the correct cable is used.
#Ensure the link status LED on the integrated router is lit.
2 Identify two physical-layer network problems. (Choose two.)
#hardware failure
#loose cable connections
3 Only one workstation on a particular network cannot reach the Internet. What is the first troubleshooting step if the divide-and-conquer method is being used?
#Check the workstation TCP/IP configuration.
4 Which two troubleshooting techniques are suitable for both home networks and large corporate networks? (Choose two.)
#documenting the troubleshooting process
#keeping a record of system upgrades and software versions
5 What two items could be checked to verify connectivity between the router and the ISP? (Choose two.)
#router status page
#connectivity status as indicated by LEDs
6 When acting as a DHCP server, what three types of information can an ISR provide to a client? (Choose three.)
#default gateway
#dynamic IP address
#DNS server address
7 A customer called the cable company to report that the Internet connection is unstable. After trying several configuration changes, the technician decided to send the customer a new cable modem to try. What troubleshooting technique does this represent?
#substitution
8 Which troubleshooting method begins by examining cable connections and wiring issues?
#bottom-up
9 What command is used to determine the location of delay for a packet traversing the Internet?
#tracert
10 A technician suspects that a Linksys integrated router is the source of a network problem. While troubleshooting, the technician notices a blinking green activity LED on some of the ports. What does this indicate?
#The ports are operational and are receiving traffic.
11 Which three settings must match on the client and access point for a wireless connection to occur? (Choose three.)
#SSID
#authentication
#encryption key
12 What should a network administrator do first after receiving a call from a user who cannot access the company web server?
#Ask the user what URL has been typed and what error message displays.
13
Refer to the graphic. What configuration is incorrect in the network shown?
#The wired connection is the wrong type of cable.
14 A technician is troubleshooting a security breach on a new wireless access point. Which three configuration settings make it easy for hackers to gain access? (Choose three.)
#broadcasting the SSID
#using open authentication
#using the default internal IP address
15
Refer to the graphic. What configuration is incorrect in the network shown?
#The host IP address is incorrect.
16 Typically, help desk personnel assist end users in which two tasks? (Choose two.)
#identifying when the problem occurred
#implementing the solution to the problem
17 Network baselines should be performed in which two situations? (Choose two.)
#after the network is installed and running optimally
#after major changes are implemented on the network
18 Which two items should be added to the documentation following a troubleshooting event? (Choose two.)
#final resolution
#results of successful and unsuccessful troubleshooting steps
19 A PC is plugged into a switch and is unable to connect to the network. The UTP cable is suspected. What could be the problem?
#A crossover cable is being used.
20 Which ipconfig command requests IP configuration from a DHCP server?
#ipconfig /renew
21
Refer to the graphic. The wireless host cannot access the Internet, but the wired host can. What is the problem?
#The host WEP key is incorrect.
22 How does remote-access software help in the troubleshooting process?
#Diagnostics can be run without a technician being present at the site.
23 What command is used to determine if a DNS server is providing name resolution?
#nslookup
#Ensure the correct cable is used.
#Ensure the link status LED on the integrated router is lit.
2 Identify two physical-layer network problems. (Choose two.)
#hardware failure
#loose cable connections
3 Only one workstation on a particular network cannot reach the Internet. What is the first troubleshooting step if the divide-and-conquer method is being used?
#Check the workstation TCP/IP configuration.
4 Which two troubleshooting techniques are suitable for both home networks and large corporate networks? (Choose two.)
#documenting the troubleshooting process
#keeping a record of system upgrades and software versions
5 What two items could be checked to verify connectivity between the router and the ISP? (Choose two.)
#router status page
#connectivity status as indicated by LEDs
6 When acting as a DHCP server, what three types of information can an ISR provide to a client? (Choose three.)
#default gateway
#dynamic IP address
#DNS server address
7 A customer called the cable company to report that the Internet connection is unstable. After trying several configuration changes, the technician decided to send the customer a new cable modem to try. What troubleshooting technique does this represent?
#substitution
8 Which troubleshooting method begins by examining cable connections and wiring issues?
#bottom-up
9 What command is used to determine the location of delay for a packet traversing the Internet?
#tracert
10 A technician suspects that a Linksys integrated router is the source of a network problem. While troubleshooting, the technician notices a blinking green activity LED on some of the ports. What does this indicate?
#The ports are operational and are receiving traffic.
11 Which three settings must match on the client and access point for a wireless connection to occur? (Choose three.)
#SSID
#authentication
#encryption key
12 What should a network administrator do first after receiving a call from a user who cannot access the company web server?
#Ask the user what URL has been typed and what error message displays.
13
Refer to the graphic. What configuration is incorrect in the network shown?
#The wired connection is the wrong type of cable.
14 A technician is troubleshooting a security breach on a new wireless access point. Which three configuration settings make it easy for hackers to gain access? (Choose three.)
#broadcasting the SSID
#using open authentication
#using the default internal IP address
15
Refer to the graphic. What configuration is incorrect in the network shown?
#The host IP address is incorrect.
16 Typically, help desk personnel assist end users in which two tasks? (Choose two.)
#identifying when the problem occurred
#implementing the solution to the problem
17 Network baselines should be performed in which two situations? (Choose two.)
#after the network is installed and running optimally
#after major changes are implemented on the network
18 Which two items should be added to the documentation following a troubleshooting event? (Choose two.)
#final resolution
#results of successful and unsuccessful troubleshooting steps
19 A PC is plugged into a switch and is unable to connect to the network. The UTP cable is suspected. What could be the problem?
#A crossover cable is being used.
20 Which ipconfig command requests IP configuration from a DHCP server?
#ipconfig /renew
21
Refer to the graphic. The wireless host cannot access the Internet, but the wired host can. What is the problem?
#The host WEP key is incorrect.
22 How does remote-access software help in the troubleshooting process?
#Diagnostics can be run without a technician being present at the site.
23 What command is used to determine if a DNS server is providing name resolution?
#nslookup
CHAPTER - 8
1 Identify three techniques used in social engineering.
(Choose three.)
#vishing
#phishing
#pretexting
2 A flood of packets with invalid source-IP addresses requests a connection on the network. The server busily tries to respond, resulting in valid requests being ignored. What type of attack occurred?
#SYN flooding
3 While surfing the Internet, a user notices a box claiming a prize has been won. The user opens the box unaware that a program is being installed. An intruder now accesses the computer and retrieves personal information. What type of attack occurred?
#Trojan horse
4 What is a major characteristic of a Worm?
#exploits vulnerabilities with the intent of propagating itself across a network
5 During a pretexting event, how is a target typically contacted?
#by phone
6 What term is used to describe a dedicated hardware device that provides firewall services?
#appliance-based
7
Refer to the graphic. In the Linksys Security menu, what does the SPI Firewall Protection option Enabled provide?
#It requires that packets coming into the router be responses to internal host requests.
8 Many best practices exist for wired and wireless network security. The list below has one item that is not a best practice. Identify the recommendation that is not a best practice for wired and wireless security.
#Disable the wireless network when a vulnerability analysis is being performed.
9 What environment would be best suited for a two-firewall network design?
#a large corporate environment
10 Which statement is true about port forwarding within a Linksys integrated router?
#Only external traffic that is destined for specific internal ports is permitted. All other traffic is denied.
11 Which two statements are true concerning anti-spam software? (Choose two.)
#When anti-spam software is loaded, legitimate e-mail may be classified as spam by mistake.
#Even with anti-spam software installed, users should be careful when opening e-mail attachments.
12 What type of advertising is typically annoying and associated with a specific website that is being visited?
#popups
13 To which part of the network does the wireless access point part of a Linksys integrated router connect?
#internal
14 What statement is true about security configuration on a Linksys integrated router?
#Internet access can be denied for specific days and times.
15 Which abbreviation refers to an area of the network that is accessible by both internal, or trusted, as well as external, or untrusted, host devices?
#DMZ
16 Which statement is true regarding anti-virus software?
#Only after a virus is known can an anti-virus update be created for it.
17 What is one function that is provided by a vulnerability analysis tool?
#It identifies missing security updates on a computer.
18 What part of the security policy states what applications and usages are permitted or denied?
#acceptable use
19 What best practice relates to wireless access point security?
#a change of the default IP address
20 What is a widely distributed approach to marketing on the Internet that advertises to as many individual users as possible via IM or e-mail?
#spam
#vishing
#phishing
#pretexting
2 A flood of packets with invalid source-IP addresses requests a connection on the network. The server busily tries to respond, resulting in valid requests being ignored. What type of attack occurred?
#SYN flooding
3 While surfing the Internet, a user notices a box claiming a prize has been won. The user opens the box unaware that a program is being installed. An intruder now accesses the computer and retrieves personal information. What type of attack occurred?
#Trojan horse
4 What is a major characteristic of a Worm?
#exploits vulnerabilities with the intent of propagating itself across a network
5 During a pretexting event, how is a target typically contacted?
#by phone
6 What term is used to describe a dedicated hardware device that provides firewall services?
#appliance-based
7
Refer to the graphic. In the Linksys Security menu, what does the SPI Firewall Protection option Enabled provide?
#It requires that packets coming into the router be responses to internal host requests.
8 Many best practices exist for wired and wireless network security. The list below has one item that is not a best practice. Identify the recommendation that is not a best practice for wired and wireless security.
#Disable the wireless network when a vulnerability analysis is being performed.
9 What environment would be best suited for a two-firewall network design?
#a large corporate environment
10 Which statement is true about port forwarding within a Linksys integrated router?
#Only external traffic that is destined for specific internal ports is permitted. All other traffic is denied.
11 Which two statements are true concerning anti-spam software? (Choose two.)
#When anti-spam software is loaded, legitimate e-mail may be classified as spam by mistake.
#Even with anti-spam software installed, users should be careful when opening e-mail attachments.
12 What type of advertising is typically annoying and associated with a specific website that is being visited?
#popups
13 To which part of the network does the wireless access point part of a Linksys integrated router connect?
#internal
14 What statement is true about security configuration on a Linksys integrated router?
#Internet access can be denied for specific days and times.
15 Which abbreviation refers to an area of the network that is accessible by both internal, or trusted, as well as external, or untrusted, host devices?
#DMZ
16 Which statement is true regarding anti-virus software?
#Only after a virus is known can an anti-virus update be created for it.
17 What is one function that is provided by a vulnerability analysis tool?
#It identifies missing security updates on a computer.
18 What part of the security policy states what applications and usages are permitted or denied?
#acceptable use
19 What best practice relates to wireless access point security?
#a change of the default IP address
20 What is a widely distributed approach to marketing on the Internet that advertises to as many individual users as possible via IM or e-mail?
#spam
CHAPTER - 7
1 A network engineer has decided to pilot test a portion of a new network design rather than rely on a prototype for proof-of-concept. What are two advantages of pilot testing a design concept?(Choose two.)
#The test network experiences real-world network traffic.
#Network response can be tested in unplanned and unpredictable situations.
2 While preparing a network test plan document, a network designer records all initial and modified device configurations. Which section of the document typically contains this information?
#Appendix
3 Refer to the exhibit. A network designer creates a test plan that includes the specification shown. In which section of the test plan would this specification be found?
#Anticipated Results and Success Criteria
4 What OSI model Layer 2 security measure can a network engineer implement when prototyping network security?
#port security at the access design layer
5 How do designers decide which network functions need to be included in the prototype test?
#They select the functions that align with the business goals.
6 Refer to the exhibit. During prototype testing of the Cisco network shown, connectivity must be verified. Assuming all connections are working and CDP is enabled on all devices and interfaces, on which device was the command issued?
#R1
7 Refer to the exhibit. During prototyping, Layer 2 functionality is being tested. Based on the output shown, which two pieces of information can be determined? (Choose two.)
#Interface Fa0/2 on Switch1 is the alternate port used to reach the root bridge.
#Based on the entries in the "Role" column, it can be concluded that RSTP has been implemented.
8 What Rapid Spanning Tree Protocol (RSTP) state is given to the forwarding port elected for every switched Ethernet LAN segment?
#designated
9 Refer to the exhibit. During prototype testing, verification of VLAN connectivity is being performed. Based on the information shown, what command produced the output?
#show interfaces trunk
10 Switch port Fa0/24 was previously configured as a trunk, but now it is to be used to connect a host to the network. How should the network administrator reconfigure switch port Fa0/24?
#Use the switchport mode access command from interface configuration mode.
11 Refer to the exhibit. The redundant paths are of equal bandwidth and EIGRP is the routing protocol in use. Which statement describes the data flow from Server to PC2?
#EIGRP load balances across the R3 to R1 and R3 to R2 links.
12 A network designer needs to determine if a proposed IP addressing scheme allows efficient route summarization and provides the appropriate amount of scalability to a design. What is useful for validating a proposed hierarchical IP addressing scheme?
#a network simulator
13 In the router command encapsulation dot1q 10, what does the number 10 represent?
#the number of the VLAN associated with the encapsulated subinterface
14 Refer to the exhibit. The users on the 192.168.10.192 network are not allowed Internet access.The network design calls for an extended ACL to be developed and tested. Where should the
ACL be placed for the least effect on other network traffic?
#inbound on Fa0/1 of R3
15 Refer to the exhibit. What two measures can be taken to address the areas of weakness circled in the network design? (Choose two.)
#Add a switch in the server block connecting the server farm to each core switch.
#Provide a redundant firewall router connecting to a second ISP, the core switches, and the DMZ.
16 Why is it important to record baseline measurements of a prototype network?
#Test results are compared to the baseline to see how the test conditions increase processor use or decrease available bandwidth.
17 Refer to the exhibit. A network administrator has been given the task of creating a design for a temporary classroom building that is to be set up outside an overcrowded school. In testing the prototype, it is found that the student PC cannot ping the teacher PC. All the switch interfaces are active and connected properly, as is interface Fa0/0 of the router. Given that only the commands shown have been added to the router configuration, what is the source of the problem?
#The IP settings on the student PC are incorrect.
18 Refer to the exhibit. Why are interfaces Fa0/11, Fa0/23, and Fa0/24 not shown in this switch output?
#Interfaces Fa0/11, Fa0/23, and Fa0/24 are trunks.
19 Refer to the exhibit. A network technician is performing an initial installation of a new switch in the east wing. The technician removes the switch from the box, makes the connections to the network, and adds the configuration shown. The technician notifies the network administrator that the switch has been installed. When the network administrator at the home office attempts to telnet to the switch from host 192.168.0.1, the connection fails. What action should the network
technician take?
#Add a default gateway to the switch configuration.
20 Refer to the exhibit. After all the interfaces have stabilized, what is the spanning-tree state of all the enabled interfaces of SW11?
#forwarding
CHAPTER - 6
1 What is the correct order of the layers of the OSI reference model, starting at the lowest layer and working up the model?
#physical, data link, network, transport, session, presentation, application
2 What three items are contained in an Ethernet header and trailer? (Choose three.)
#source MAC address
#destination MAC address
#error-checking information
3 Which protocols are TCP/IP application layer protocols? (Choose two.)
#FTP
#SMTP
4
Refer to the graphic. Which protocol is used to access this website?
#HTTP
5 What is an advantage of the use of layers in the OSI reference model?
#It prevents changes in one layer from affecting other layers.
6 What term is used to describe how TCP/IP protocols are layered and interact to format, address, and transmit information across a network?
#protocol stack
7 Whenever e-mail clients send letters, what device is used to translate the domain names into their associated IP addresses?
#DNS server
8 An Internet server is running both FTP and HTTP services. How does the server know which of these applications should handle an incoming segment?
#The segment destination port number identifies the application that should handle it.
9 You are creating a network-based video game. What influences your decision about which transport protocol to use for the application?
#UDP will not disrupt the game to retransmit dropped packets.
10 Which port number is used by SMTP?
#25
11 Which application is most likely used to translate www.cisco.com to 198.133.219.25?
#DNS
12 Which of the following are layers of the TCP/IP model? (Choose three.)
#Application
#Internet
#Network Access
13 Which protocol is used by e-mail servers to communicate with each other?
#SMTP
14 What client software enables logged in users to communicate with other logged in users in real time?
#instant messaging
15 What type of server would use IMAP?
16 What resolves a website URL to an IP address?
#DNS server
17 What information is contained in an IP header?
#source and destination IP addresses
18 Which protocol is used by FTP to transfer files over the Internet?
#TCP
19 A client has decoded a frame and started the de-encapsulation process. In which order does the de-encapsulation process occur?
1) remove Ethernet header and trailer
2) remove IP header
3) remove TCP header
4) pass data to the application
20 A device receives an Ethernet frame and recognizes the MAC address as its own. What does the device do to the message to get to the encapsulated data?
#removes the Ethernet header and trailer
21 Cabling issues are associated with which OSI layer?
#1
22 A network client in a corporate environment reboots. Which type of server would most likely be used first?
#DNS
