Networking Quiz Challenge
Networking Quiz Challenge
Test your knowledge with our comprehensive quiz on networking protocols and technologies! This quiz contains 50 multiple-choice questions covering a wide range of topics, including NAT, PPP, and DSL. Whether you are a student, teacher, or a networking enthusiast, this quiz is designed to enhance your understanding of networking concepts.
Features of the quiz:
- 50 engaging questions
- Covers various networking topics
- Instant feedback and scoring
PPP uses the LCP protocol to negotiate whether or not IPv4 or IPv6 traffic is transmitted over the link.
True
False
The PAP authentication protocol periodically verifies the identity of the remote node.
True
False
PPPoE is the international standard for adding data to an existing cable system
True
False
SDSL is a type of DSL service that provides the same bandwidth for uploads and downloads
True
False
A remote access VPN connects host computers to a VPN gateway
True
False
CMTS is a device as the headend of the cable company
True
False
An inside global address is normally an RFC1918 IPv4 address
True
False
The NAT extendable keyword is used to configure NAT to identify flows by port number
True
False
A transceiver is a device at the subscriber end of a data over cable system
True
False
A PPPoE header is 24 bytes
True
False
Chap authentication is initiated by the client
True
False
The local loop is the place where the responsibility of a WAN connection changes from the service provider to the customer.
True
False
CPE are the devices and wiring located on the enterprise edge
True
False
An ethernet WAN is a high-bandwidth layer-2 WAN service using fiber-optic cabling to provide connections in metropolitan areas
True
False
DSL is a public WAN technology which provides security by using encrypted tunnels over Internet Connections
True
False
WAN operations focus primarily on the:
OSI physical layer
OSI physical and data-link layers
OSI physical layer, data link, and network layers
OSI physical layer, data link, network and transport layers
OSI physical layer, data link, network, transport, session, and presentation layers
An RFC 1918 private IP address:
Is routable on the public networks.
Can be used by many different private networks simultaneously
Is unique to a specific public network point of presence
Is automatically dropped by Cisco router connected to the Internet
None of the above
Consider this NAT implementation. When a translation occurs, which address would be the inside global address?
192.168.1.1
4.4.4.2
192.168.1.10
4.4.4.4
None of the above
A network administrator configures the border router with the command. Several additional configuration tasks must be completed. Identify one required task from the following list
A NAT pool named HQ that defines the starting and ending public IP addresses
An access list named CORP that defines the private addresses that are affected by NAT
An access list named HQ that defines the starting and ending public IP addresses
Ip nat outside to be enabled on the interface that connects to the LAN affected by the NAT
None of the above.
The command which displays the LCP and NCP states on a PPP link via serial 0/0 is:
Show interface serial 0/0
Show interface serial 0/0 PPP
Show ppp status
Debug ppp negotiation
Debug ppp authentication
Router 1 configuration is shown below. Router1 receives an incoming challenge from Router2. The password that Router 1 will use in creating the response will be:
The password cisco
The password class
Both passwords cisco and class
None of the above
The following debug message are observed on R1. Select the TRUE statement below
The username/password sent from R1 matches the account on R2.
The username/password sent from R2 matches the account on R1
Both a and b are true
Both a and b are false
A router implementing PAT can connect to external hosts but the inside workstations cannot. A command which can help in verification of whether or not the router tried to translate the source ip address is:
Show ip nat translations
Show ip pat translations
Show ip nat inside
Show run
Show access-list
Which of the following statements are true about an IP NAT inside implementation:
In packets going from inside to outside, the destination IP address is translated.
In packets going from outside to inside, the destination IP address is translated.
In packets going from outside to inside, the source IP address is translated.
Both b and c.
None of the above
Which PPP authentication protocol verifies the identity of the remote node only once at the beginning of the session
CHAP
PAP
Multilink
Null authentication
None of the above
Two routers are connected with a PPP link using PAP authentication. The debug output is shown below. Which of the following configuration pairs matches the debug output?
Your router (ran the debug) Neighbour router
username RA password cisco Username RB password cisco
ppp pap sent-username RA password cisco ppp pap sent-username RB password cisco
Your router (ran the debug) Neighbour router
username RB password class Username RA password cisco
ppp pap sent-username RA password cisco ppp pap sent-username RB password cisco
Your router (ran the debug) Neighbour router
username RB password cisco Username RA password cisco
ppp pap sent-username RA password cisco ppp pap sent-username RB password cisco
Your router (ran the debug) Neighbour router
username RB password cisco Username RA password class
ppp pap sent-username RA password cisco ppp pap sent-username RB password cisco
Which inside NAT translation implements port forwarding?
Static NAT
Dynamic NAT
PAT using a pool
PAT using the public IP address of an interface
None of the above.
With inside dynamic NAT/PAT configuration, the access-list defines:
The internal host addresses from which the router will accept data.
The internal host addresses for which the router will forward data.
The destination addresses for which the router will accept data on an outside interface.
The internal addresses which can be translated.
The public addresses of the internal hosts.
Which of the following is NOT supported by the PPP protocol?
Data encryption
Multi-link
Call back
Link quality monitoring
All of the above are support by the PPP protocol
Which PPP protocol negotiates authentication, compression, multilink and dynamic addressing?
802.1x
LCP
NCP
X.25
V.35
What is the public IP address of WC in EXHIBIT A
10.0.0.1
10.0.0.2
200.1.1.2
200.1.1.3
200.1.1.4
In EXHIBIT A, WA pings WC. As the icmp-echo request frame travels from WA to WC, the soure IP address in the frame on the RA-RB link will be:
10.0.0.1
11.0.0.1
172.16.1.1
172.16.1.2
192.168.1.2
In EXHIBIT A, WA pings WC. As the icmp-echo request frame travels from WA to WC, the soure IP address in the frame on the RB-RC link will be:
10.0.0.1
11.0.0.1
172.16.1.1
200.1.1.1
200.1.1.3
In EXHIBIT B, R1 is configured with:
Static NAT
Dynamic NAT
Static PAT
Dynamic PAT
None of the above
In EXHIBIT B, R1 is using NAT with a pool. Can all workstations connected to g0/0 on R1 access the DNS server simultaneously:
Yes
No, because there is an error in the pool definition.
No, because there is an error in the access list which allows the 192.168.0.0 network instead of the 192.168.2.0 network.
No, because there is an error in the translation statment and it will be rejected by the cisco IOS
No because the pool, access-list, and translation rule limit translations to one internal host on a first-come/first served basis
In EXHIBIT B, the ISP is using static NAT to redirect traffic to the server shown in the diagram. Based on ISP configuration, the actual IP address of this server is:
199.9.9.1
205.5.5.5
205.5.5.10
Not enough information is provided.
In EXHIBIT B, the workstation 192.168.2.10 performs a DNS lookup using the server connected to the ISP. The inside global address on R1 for the translation is:
192.168.2.10
199.9.9.1
205.5.5.5
205.5.5.10
Referring to Exhibit C: Workstation 172.31.1.10.2 pings 110.2.2.2. As the ICMP echo-request travels through the network, what is the outer source IP address on the R3-R4 serial link?
173.31.10.2
200.1.1.1
200.2.2.1
200.3.3.1
None of the above
Referring to Exhibit C: Workstation 172.32.10.2 pings 110.2.2.2. As the ICMP echo-request travels through the network, what is the outer source IP address on the R3-R4 serial link?
173.31.10.2
200.1.1.1
200.2.2.1
200.3.3.1
None of the above
Referring to Exhibit C: Workstation 172.31.10.2 pings 110.3.3.3. As the ICMP echo-request travels through the network, what is the outer source IP address on the R3-R4 serial link?
173.31.10.2
200.1.1.1
200.2.2.1
200.3.3.1
None of the above
Referring to Exhibit C: Workstation 172.32.10.2 pings 110.3.3.3. As the ICMP echo-request travels through the network, what is the outer source IP address on the R3-R4 serial link?
173.31.10.2
200.1.1.1
200.2.2.1
200.3.3.1
None of the above
A secure Internet-based WAN access used by teleworkers and external hosts is:
GRE tunnel
MD4 hash
Site-to-site VPN
Remote access VPN
Dynamic NAT with overload
A secure Internet-based WAN topology connecting branch offices where the internal hosts are unaware that the VPN exists
Site-to-site VPN
Remote-access VPN
IPSec in tunnel mode
GRE
DOCSIS
Two routers are configured for chap authentication. Debug shows
(config)# username BB8 password cisco
(config)# username R2D2 password cisco
Both of the above
Which advantage is supported by PPP and Cisco HDLC but not the original ISO HDLC implementation?
Authentication
Multilink
Multiple network layer protocols
Encryption
Packet Switching
The serial configuration for RA and RB is shown below. Why is the line protocol down?
The IP addresses are not in the same network.
The clock rate and bandwidth are not consistent
The username are misconfigured
All of the above.
Default encapsulation used on serial interfaces on a Cisco router:
802.3
802.11
DSL
PP
None of the above
What is a major benfit of using NAT with overload
It provides a mechanism to allow external hosts access to an internal server
It allows many internal hosts to use the same public ipv4 address
It allows end-to-end address tracking by means of the translation table
It improves network performance fir real-time protocols
None of the above
What is the purpose of port-forwading?
It provides a mechanism to allow external hosts access to an internal server
It allows many internal hosts to use the same public ipv4 address
It allows end-toend address tracking by means of translation table
It improves network performance for real-time protocols
None of the above.
One advantage of PPPoE to service provider is:
Efficient use of bandwidth
Higher download speeds
Segmentation of customer traffic via vlans on the ethernet link
Customer authentication and accounting via PPP authentication
None of the above
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