Networking
Mastering Networking Fundamentals
Test your knowledge on networking concepts and protocols with our comprehensive quiz! This quiz covers a wide range of topics from OSI layers to cloud computing, ensuring you have a solid understanding of the field.
Features:
- 30 engaging multiple-choice questions
- Immediate feedback on your answers
- Perfect for students and IT professionals
What protocol is used for a host to discover the L2 address of the next device in the path towards a remote destination?
TCP
UDP
DNS
ARP
What layer of the OSI model coordinates with the Transport layer of the TCP/IP model?
Network
Transport
Session
Presentation
What Transport layer protocol does EIGRP rely upon in its operation?
TCP
UDP
ICMP
None of these answers are correct
Ethernet LANs, when operating in half-duplex, rely on what technology in order to deal with collisions?
CSMA/CA
CSMA/CD
CSMA/CC
CSMA/CQ
What security device tends to be implemented in many different forms, including hardware and software?
WLC
Firewall
Access point
Router
Which is not a common characteristic of cloud services?
On-demand
Dynamic scaling
Auto-administration
Resource pooling
Gmail is an example of what type of as a service model?
TaaS
SaaS
IaaS
PaaS
At what layer of the Cisco network model might you expect to find port security?
Distribution
Internet
Access
Core
At what layer of the Cisco network model is speed most important?
Distribution
Internet
Access
Core
What topology consists of an n(n-1)/2 number of connections?
Star
Full mesh
Partial mesh
Hybrid
In a WAN environment, the hub-and-spoke design is most often termed what type of topology?
Full mesh
Hybrid
Bus
Partial mesh
What technology eliminates the major concerns about crossover versus straight-through cables?
STP
RSTP
Auto-mdix
FabricPath
What is not an example of a question you might need to ask when provisioning your device with the correct serial cable?
Is the router being connected to a data terminal equipment (DTE) or data communications equipment (DCE) device?
Is the port part of the chassis or modular?
Is a male or female connector required on the cable?
What signaling standard does the device require?
What happens should you not be able to resolve a problem that one of your users is having regarding their e-mail?
Further documentation
Verification
Monitoring
Escalation
What are two steps of a troubleshooting methodology where Cisco show commands might prove most valuable? (Choose two)
Escalation
Monitoring
Resolve
Problem isolation
What layers of the OSI model coordinate to the Application layer of the TCP/IP model? Choose all that apply.
Transport
Application
Presentation
Session
What layer of the OSI model exists just above the Network layer?
Session
Presentation
Application
Transport
What layer of the OSI model controls the logical connections between two systems (local and remote), establishing, maintaining, and terminating these connections as necessary?
Transport
Data Link
Session
Presentation
What are the terms for the four PDUs that exist at the bottom of the OSI model? Name these in order from bottom to top.
Segments, Frames, Packets, Bits
Bits, Frames, Packets, Segments
Packets, Frames, Bits, Segments
Segments, Packets, Frames, Bits
What protocol uses windowing in order to implement flow control?
ICMP
TCP
UDP
RIP
What command allows you to see the type of serial cable connected to your device?
show version
show controllers
show interface
show flash
What topology do you find in a modern switched LAN?
Star
Mesh
Hybrid
Full mesh
What type of cable is used in order to connect a switch to another switch?
Straight-through
Crossover
Null
Dual band
What pathing option for public cloud provides the most security and control for an organization?
Private WAN
Internet access
Internet access with VPN
Cisco DirectConnect Cloud
What is 203 converted to binary?
11001011
11101011
10101100
11001000
What is 01101111 in decimal?
112
111
120
110
What is the default subnet mask for a class B network?
255.255.255.0
255.0.0.0
255.255.0.0
255.255.255.255
If your mask uses three bits in an octet, what is the decimal value?
192
224
240
252
If you have a mask of 255.255.255.240�how many hosts can you support?
32
62
14
6
Your network needs to support 30 subnets. How many bits should you �borrow� in order to create the least waste in address space?
4
5
6
7
What is the last usable host on a subnet where host has been given the address of 172.16.7.1 255.255.254.0?
172.16.7.255
172.16.6.1
172.16.7.128
172.16.7.254
Your system is sending email to the local SMTP server. What type of IPv4 traffic is this most likely given that these two systems have communicated seconds ago?
Broadcast
Multicast
Unicast
Anycast
EIGRP uses 224.0.0.10 in its operation. What type of address is this?
Unicast
Broadcast
Multicast
Anycast
What does it mean when you see FF:FF:FF:FF:FF:FF as the destination address in an Ethernet frame?
It means the frame is a multicast
It means the frame is a unicast
It means the frame should be dropped
It means the frame is a broadcast
What technology permits many private addresses to communicate on the public Internet?
SMTP
POP3
SNMP
NAT
Which of the following is not a private address?
10.10.10.1
12.34.100.1
172.16.1.10
192.168.1.10
What famous RFC defined the private use only IP address space?
RFC 2020
RFC 2191
RFC 2001
RFC 1918
What is two raised to the seventh power?
64
128
32
16
What is the meaning of this IP address 127.0.0.1?
This is a multicast address.
This is a Class A unicast address.
This is a loopback address.
This is an invalid IP address.
What is the subnet mask if you began with the default Class A mask and then �borrowed� four bits for subnetting?
255.255.128.0
255.255.240.0
255.240.0.0
255.255.255.240
If you need to create six subnets, and want to waste as little IP address space as possible, how many bits should you �borrow�?
2
3
4
5
What is the Layer 3 broadcast address?
127.255.255.255
0.0.0.0
1.1.1.1
255.255.255.255
What is the range of Class B private addresses?
172.16.0.0 to 172.16.255.255
172.0.0.0 to 172.255.255.255
172.16.0.0 to 172.31.255.255
172.32.0.0 to 172.36.255.255
What is the size of the source address field in an IPv6 header?
6 bytes
8 bytes
12 bytes
16 bytes
What are the two rules you can use to shorten an IPv6 address? (Choose two).
You can trim all trailing zeros in all sections.
You can trim all leading zeros in all sections.
You can use :: twice in an address.
You can use :: once in an address.
What is the typical network portion of an IPv6 global unicast address?
32 bits
48 bits
64 bits
128 bits
When troubleshooting an IPv6 network, you notice that two devices have identical IPv6 addresses. If the network is actually configured correctly, why might this occur?
The devices are using broadcasts for routing protocol traffic
The devices are using Anycast
The devices are using matching Link Local addresses for the purpose of SLAAC
The devices are using Unique Local addresses
What command do you need in order to enable IPv6 routing capabilities on a Cisco router?
ipv6 unicast-routing
ipv6 routing
ipv6 routing enable
ipv6 unicast-enable
How many more bits are used in an IPv6 address compared to an IPv4 address?
96
128
48
64
What command configures IPv6 on your interface and eliminates your requirement of manually configuring a host address?
ipv6 address 2001:aaaa:bbbb::/64 auto
ipv6 address 2001:aaaa:bbbb::/64
ipv6 address 2001:aaaa:bbbb::/64 eui-64
ipv6 address 2001:aaaa:bbbb::/64 slaac
What is the significance of :: in the following IPv6 address�2001:0:11:1:: 1:1AB1/64?
It is used to represent a single section of 0000.
It is used to represent one or more continuous sections of 0000.
It is used to represent a single section of 1111.
It is used to represent one or more continuous sections of 1111.
What two commands could you use to verify your IPv6 interface address? (Choose two)
show ipv6 interface brief
show interface ipv6 details
show ipv6 interface
show interface ipv6 info
Why might a stateless DHCP server be used in addition to SLAAC?
In order to conserve address space
In order to assign the prefix information needed by the host
In order to track address assignments
In order to provide DNS address information
What command causes your router interface to configure its own host portion of the address?
ipv6 address 2001:aaaa:bbbb::1/64 auto
ipv6 address 2001:aaaa:bbbb::1/64 eui-64
ipv6 address 2001:aaaa:bbbb::/64 eui-64
ipv6 address 2001:aaaa:bbbb::/64 auto
How might a device create its host portion of the address once acquiring its prefix via SLAAC?
Using stateless DHCP
Using Modified EUI
Using NAT
Using a DNS server
What command allows you to see the multicast addresses that an interface has joined in IPv6?
show ipv6 interface brief
show ipv6 interface
show ipv6 interface multicast
show multicast ipv6
How can a SLAAC host communicate with its neighbor that is providing network prefix information?
The Link Local address
CDP
NAT
The Anycast address
If you are using DHCP in IPv6 combined with the SLAAC feature, you are most likely using what version of DHCP?
Stateful
Stateless
Headless
Auto
What does a Link Local address begin with?
FD80::/10
FE80::/10
FF80::/10
FC80::/10
If you use the ipv6 enable command on an interface, what address do you have on that interface?
Global Unicast
Autoconfiguration
Unique Local
Link Local
What address does IPv6 use in order to multicast traffic to all devices?
FF02::1
FF02::2
FF02::5
FF02::6
What is the default EtherChannel mode on a Cisco switch?
PAgP
LACP
Static
NULL
Where do you assign the IP address in a Layer 3 EtherChannel?
The physical interfaces
The port-channel interface
The NVI interface
Global configuration mode
What command creates a LACP EtherChannel with a local ID of 10?
channel-group 10 mode active
channel-group 10 mode desirable
channel-group 10 mode on
channel-group 10 mode enable
What method of grouping physical switches together uses special ports and cables?
Switch stacking
Chassis aggregation
Virtual port channel
TRILL
How many switches do you use chassis aggregation with?
1
2
3
4
Which of the following is not a mode for EtherChannel configuration?
NULL
Static
PAgP
LACP
What command would verify all of your local EtherChannels?
show portchannels all
show etherchannel summary
show portchannel details
show portchannel interfaces
What physical switch aggregation technology allows for the combination of three or more switches?
Chassis aggregation
Switch stacking
TRILL
STP-NULL
Given the following routing table entries, what is the next router (or hop) to be used for a packet destined for 172.16.1.23/24? 172.16.0.0/16 via 10.10.10.1 0.0.0.0/0 via 192.168.1.1 172.16.1.0/24 via 10.20.20.2 172.16.2.0/24 via 10.30.30.3
10.30.30.3
192.168.1.1
10.10.10.1
10.20.20.2
When performing a Layer 2 rewrite, what does the router use for the source MAC address?
The next-hop interface MAC address
The sending interface MAC address on the local router
The previous hop sending interface MAC address
The receiving interface MAC address of the local router
What is the decimal network mask for a prefix notation of /22?
255.255.252.0
255.255.254.0
255.255.248.0
255.255.240.0
What is the routing protocol code for a connected prefix?
S
L
C
I
What aspect of the routing table is impacted by the command ip route 0.0.0.0 0.0.0.0?
Network mask
Metric
Administrative distance
Gateway of Last Resort
What is the default administrative distance value for RIP?
100
60
200
120
What is the default administrative distance value for External BGP?
60
20
110
200
What is the default administrative distance value for OSPF?
100
110
120
140
What is the default administrative distance value for a connected interface?
5
1
0
20
If a router cannot find a best match, what might the router use to route the traffic?
255.255.255.255/0
127.0.0.1/32
0.0.0.0/32
0.0.0.0/0
When a router forwards packets on Ethernet, wh is rewritten?
The source and destination IP addresses
Only the source IP address
Only the source MAC address
The source and destination MAC addresses
Which is not an example of a dynamic routing protocol?
BGP
EIGRP
VTP
RIP
What does the routing protocol code B indicate in the routing table?
EIGRP
IGRP
RIP
BGP
What type of routing protocol is considered more sophisticated and builds a map of the network?
Hybrid
Path Vector
Distance Vector
Link State
What is the administrative distance of Internal EIGRP?
5
20
90
100
BGP is considered what type of routing protocol?
Hybrid
Path Vector
Distance Vector
Link State
What is the unreachable AD?
0
100
200
255
Which of the following is the main protocol enabling the Internet to fun
IS-IS
OSPF
BGP
RIP
An RE allows inter-VLAN communication. What is an RE?
Routing entity
Routing entry
Routing engine
Register entry
Where is internal routing found?
Only within service providers
Within Autonomous Systems
Between Autonomous Systems
In lab environments only
What is the virtual interface that makes ROAS possible?
Loopback
Subinterface
TTY
VTY
What is an example of a Hybrid routing protocol?
RIP
OSPF
EIGRP
BGP
What command allows you to verify the ROAS configuration on a router?
show interface trunk
show vlan status
show vlan
show subinterfaces status
What is the mask length for a static default route?
0
64
16
32
Why might a ROAS configuration have an IP address on the physical interface?
The configuration is in error
This is a required configuration
The IP address is associated with the Native VLAN
The IP address is an RFC 1918 address and is not used
What protocol is considered distance vector?
IS-IS
OPSF
EIGRP
RIP
What protocol is used for inter-AS routing?
OSPF
RIP
EIGRP
BGP
What is a popular reason for configuring static routing in a modern network?
Remote prefixes in a local area network
Because of the overhead of OSPF
Because static routing has less administrative overhead
Because of the need for a default route
What two parameters of a static route are acceptable as part of the ip route command to indicate where traffic should be sent? (Choose two)
Next-hop IP address
RE ID
Destination MAC address
Outgoing interface
What statement about EIGRP for IPv6 is true?
An AS is used in the configuration.
The router code is E.
Cost is the administrative distance value.
The network command cannot use a wildcard mask.
What command can you use to verify neighbors in EIGRP for IPv6?
show eigrp ipv6 peerings
show eigrp neighbors ipv6
show eigrp peerings ipv6
show ipv6 eigrp neighbors
What command permits the simple verification that a static route is in the routing table?
show static
show ip route
show routing table static
show admin routes
What command stops an interface that is included by the network command in order to not send RIP information?
disable interface
passive-interface
interface-silent
rip-silent
What feature do you use in order to create a floating static route?
Metric
Dampening
Route suppression
Administrative Distance
What tool is excellent for checking basic IP connectivity?
Ping
NSLOOKUP
Telnet
WHOIS
What statement about OSPFv2 is true?
The dead timers do not need to match betwee neighbors.
The hello timers do not need to match betwee neighbors.
The area ID must match between neighbors.
The network command must be used.
What value is compared when analyzing two possible EIGRP routes?
AD
Metric
Hop count
Dead time
What command can you use to verify neighbors in OSPFv2?
show ospf neighbors
show ip ospf neighbors
show ospf database neighbors
show ospf peers
What is an example of a link state routing protocol?
RIP
OSPF
EIGRP
BGP
What statement about OSPFv3 is true?
The dead timers do not need to match betwee neighbors.
The hello timers do not need to match betwee neighbors.
The area ID must match between neighbors.
The network command must be used.
What is the mask length for a host route?
0
64
16
32
What command can you use to verify neighbors in OSPFv3?
show ospfv3 neighbors
show ipv6 ospf neighbors
show ospf database neighbors v3
show ospf peers version 3
What command permits you to view the IPv6 routing table?
show route ipv6
show route new
show ipv6 route
show route
What statement about EIGRP for IPv4 is true?
An AS is used in the configuration.
The router code is E.
Cost is the administrative distance value.
The network command cannot use a wildcard mask.
What verification command includes the following? Routing for Networks: 10.0.0.0
show ip route
show router rip
show rip config
show ip protocols
What command can you use to verify neighbors in EIGRP for IPv4?
show eigrp neighbors
show ipv4 eigrp neighbors
show eigrp peerings
show ip eigrp neighbors
What command enters router configuration mode for OSPF version 2?
router ospf 1
router ospf version 2
ospf router version 1
router ospf process 1 version 2
What command must be used in order to properly configure OSPF version 3?
ipv6 route-enable
set ospf v 3
ospf version 3
ipv6 unicast-routing
What identifier is used with an EIGRP configuration?
A process ID
A tag
An AS number
A metric
Which statement about EIGRP for IPv6 is correct?
The global unicast address is the next-hop value in routes.
The network command is a requirement in the configuration.
The network command accepts a wildcard mask.
The routing process permits a shutdown and no shutdown.
What tool enables you to follow the router-torouter path a packet takes in the network?
Traceroute
Ping-path
NSLOOKUP
NETSTAT
When you are configuring CHAP on your device, what is typically the local username you set?
The hostname of the remote device
The hostname of the local device
The admin username of the remote device
The admin username of the local device
What commands permits the verification of PPP on interface serial 2/0?
show ppp all
show interface serial 2/0
show ppp interface serial 2/0
show interface serial 2/0 ppp
In what PPPoE phase are PPP options negotiated and authentication performed?
PPP Session Phase
Active Discovery Phase
PPP Authentication Phase
NCP Phase
In the PPPoE client configuration, what IP address do you assign under the physical interface on the client?
An RFC1918 address
None
A public IP address
A public IP address of your local ISP
What is the error that occurs when a router tries to route to the tunnel destination address using the tunnel interface itself?
Down state proliferation
Looped routing
Layer 2 looped resolution
Recursive routing
What command sets the tunnel to GRE?
tunnel mode gre ip
tunnel mode ip gre
tunnel mode gre-ip
tunnel gre
What topology is often skipped due to costs and administrative overhead?
Full-mesh
Hub-and-spoke
Point-to-point
Single-homed
If your WAN client actually makes connections to two separate ISPs, this is called what?
Single-homed
Dual-homed
Point-to-point
Full-mesh
What technology uses simple labels for the forwarding of traffic instead of complex routing tables?
Broadband PPPoE
Client VPN
Metro Ethernet
MPLS
What technology might use a Web browser in order to form a secure VPN connection?
Broadband PPPoE
Client or SSL VPN
Metro Ethernet
MPLS
Which control protocol of PPP ignores the upper layer protocols and focuses on the link itself?
NCP
LCP
PPC
VTP
Which phase of PPPoE ensures a Session ID is assigned and the PPPoE layer is established?
The Active Discovery Phase
The PPP Session Phase
The Link Layer Phase
The Session ID Phase
To ensure that OSPF is forming properly over your tunnel interface, what command can you use?
show ospf process
show interfaces ospf
show ip ospf neighbor
show ip ospf gre
What command permits you to verify that your eBGP relationship has formed?
show bgp routes
show ip bgp summary
show summary bgp
show route peering summary bgp
What is the default admin distance of eBGP?
10
20
200
110
What command do you use to form a BGP peering?
network
neighbor
peer
adjacency
What command do you use to advertise a local prefix into BGP?
network
neighbor
peer
adjacency
What marking is done at Layer 3?
Type of Service
Class of Service
Experimental Bits
BECN
What does it mean to trust a device in a QoS environment?
To forward the traffic from the device regardless of priority
To honor the QoS markings
Zone File Server
DNS Client
What approach to QoS features marking and classifying traffic?
IntServ
DiffServ
BE
RSVP
What is a variation in delay in QoS?
Shaping
Packet loss
Latency
Jitter
LLQ is a form of what tool in QoS?
Congestion Management
Policing
Shaping
Marking
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