Network Fundamentals - Exam Prep
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Computers
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Professional Development
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Jason Clifford
Used 16+ times
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1 Slide • 54 Questions
1
2
Multiple Choice
What is the primary purpose of the OSI model?
It is a conceptual division of computer network architecture into seven logical layers.
It is responsible for maintaining communication among different components on the web.
It is a six-layer protocol that represents the Cisco IOS system.
It is a seven-layer model used to differentiate among IP classes.
3
Multiple Choice
Which device is typically used to allow communication among two or more networks?
Router
RJ45 cable / Ethernet Cable
Proxy firewall
Network hub
Switch
4
Multiple Choice
What is the main advantage of UDP?
It is reliable.
It is fast.
It has a high overhead.
It is secure.
5
Multiple Choice
What is a NIC (Network Interface Card) hardware address used for networking known as?
IP address
Network Interface Card
MAC address
Address Resolution Protocol
6
Multiple Choice
Which command would you use to display the status of all interfaces on a Cisco router?
show status interface
show interface complete
show ip route
show ip interface brief
7
Multiple Choice
While in User mode, which command would you use in the Cisco CLI to enter Privileged EXEC mode?
admin
enable
disable
privilege
8
Multiple Choice
How many bits are assigned to the network portion in the classful subnetting for a class A network?
8 bits
16 bits
32 bits
64 bits
9
Multiple Choice
What is the decimal value of binary value “1010”?
2
16
10
None of these
10
Multiple Choice
In which layer of the OSI model does a router function?
Layer 1 - Physical
Layer 2 - Data Link
Layer 3 - Network
Layer 4 - Transport
11
Multiple Choice
When a new trunk link is configured on an IOS-based switch, which VLANs are allowed over the link? (By Default!!!)
Only configured VLANs are allowed on the link.
Only extended VLANs are allowed by default.
No VLANs are allowed, you must configure each VLAN manually.
By default, all VLANs are allowed on the trunk
12
Multiple Choice
What are the highest TCP and UDP port numbers?
Those protocols do not use ports.
The highest TCP port number can be 65,535, the highest UDP port number can be 16,384
The highest TCP port number can be 65,535, the highest UDP port number can be 65,535.
The highest TCP port number can be 16,384, the highest UDP port number can be 16,384.
13
Multiple Choice
What do the routing tables of a router keep track of?
MAC addresses assignments.
Routes used to forward data to their destinations.
Port assignments to network devices.
IP addresses of network devices.
14
Multiple Choice
What is Open Shortest Path First (OSPF) also known as?
Link state protocol
Error correction protocol
Network information protocol
All of these
15
Multiple Choice
Which of the following protocols is used by devices to advertise and gather information about neighboring devices?
One-way route
NTP
CDP
UDP
TCP
16
Multiple Choice
Which of the following is true regarding RIPv2?
It converges faster than RIPv1.
It is a classful routing protocol, similar to RIPv1.
It has a lower administrative distance than RIPv1.
It supports CIDR and VLSM.
17
Multiple Choice
Where should you place a Standard ACL?
As close to the destination as possible.
At the midpoint between the destination and source.
As close to the source as possible.
None of these.
18
Multiple Choice
Which of the following is correct about VLSM?
Subnets must be the same size.
It has no requirements for subnets.
It can have subnets of different sizes.
None of these.
19
Multiple Choice
You want to improve network performance by increasing the bandwidth available to hosts and limiting the size of broadcast domains. Which of the following will achieve those goals?
Hubs
Switches
Router-on-a-Stick
Switches configured with VLANs
20
Multiple Choice
How many usable host addresses are there per subnet if you have the address 192.168.10.0 with the subnet mask 255.255.255.240?
4
8
14
16
21
Multiple Choice
Which command will add a static route to the router?
After going to "enable" and doing "configuration terminal".
route 172.31.10.0 255.255.255.0 via 10.10.10.2
route via 10.10.10.2 172.31.10.0 255.255.255.0
ip route 172.31.10.0 255.255.255.0 10.10.10.2
ip route add 172.31.10.0 255.255.255.0 10.10.10.2
22
Multiple Choice
How many layers are there in the TCP/IP model?
NOTE: Not the OSI Model!
3
4
6
7
23
Multiple Choice
Which of the following is used to verify the integrity of a Frame?
Frame Verification Sequence
Frame Check Sequence
Frame Type
It’s impossible to verify the integrity of a frame
24
Multiple Choice
An ARP request is sent as broadcast. How is an ARP reply sent?
Multicast
Universal
Generated locally
Unicast
25
Multiple Choice
Which command would you use to display the status of all interfaces on a Cisco router?
show status interface
show ip route
show interface
show ip interface brief
26
Multiple Choice
What is stored in a Cisco device MAC address table?
Logical & physical addresses
VLAN configuration
Logical addresses
Physical addresses
27
Multiple Choice
In-band management requires the network to be up and running. If there is a problem with the network, it would mean that you would need out of band management. Which one of the following is a method of out of band management for Cisco routers?
USB Flash Drive
Console Cable
Firewire
eSATA
28
Multiple Choice
When configuring port security, what is the default action in case of a violation?
Restrict
Shutdown
Err-disable
Protect
29
Multiple Choice
What do the routing tables of a router keep track of?
MAC address assignments.
IP addresses of network devices.
Routes used to forward data to their destinations.
Port assignments to network devices.
30
Multiple Choice
According to which parameter does a Standard ACL permit or deny network traffic?
Source address
Destination address
Port address
Source and destination addresses
31
Multiple Choice
An Extended ACL can filter data up to which layer?
Remember the OSI Model for this one 1-7!
2
3
4
7
32
Multiple Choice
Which of the following protocols allows multiple clients access to the internet using a single public address?
PAT
PPPoE
OSPF
Dynamic NAT
33
Multiple Choice
You want to improve network performance by increasing the bandwidth available to hosts and limiting the size of broadcast domains. Which of the following will achieve those goals?
Hubs
Switches configured with VLANs
Router-on-a-Stick
Switches
34
Multiple Select
Which of the following tasks does DHCP perform? (Select two answers)
Performs host discovery for a DHCPDISCOVER message.
Assigns and renews lease time for addresses.
Provides simple management of layer 3 devices.
Monitors IP performance using the DHCP server.
Configures IP address parameters from a DHCP server to a host.
35
Multiple Choice
Which base does the hexadecimal number system use?
Base 2
Base 10
Base 16
Base 60
36
Multiple Choice
What is the purpose of a Native VLAN?
To forward only TCP traffic
To forward untagged traffic
To forward urgent traffic
None of these
37
Multiple Choice
Where should you place an Extended ACL?
As close to the destination as possible.
As close to the source as possible.
At the midpoint between the destination and source.
None of these.
38
Multiple Choice
How does a router choose the best route when multiple routing methods are configured?
Administrative distance
Routing source code
Metric
Passive-interface
39
Multiple Choice
On what layer of the OSI do collision domains exist?
Physical
Data Link
Network
Transport
40
Multiple Choice
How does a switch discover other devices?
It sends a PRAP packet.
It sends a DNS request.
It sends a DHCP request.
It sends an ARP request.
41
Multiple Choice
What is the main advantage of TCP?
It has a high overhead.
It is reliable.
It is fast.
It is encrypted.
42
Multiple Choice
A MAC address is assigned to a ____?
Network Interface Card
Keyboard
Computer
Mouse
43
Multiple Choice
How many bits are assigned to the network portion in the classful subnetting for a class C network?
16
24
32
64
44
Multiple Choice
What is the decimal value of binary value 00010000?
2
10
16
None of these
45
Multiple Choice
On which layer of the OSI model does a switch function?
Layer 1: Physical
Layer 2: Data Link
Layer 3: Network
Layer 4: Transport
46
Multiple Choice
How do VLANs communicate with each other?
They have to be routed just like any other LAN.
VLANs on the same switch cannot communicate.
VLANs broadcast an ARP request.
VLANs use BGP to communicate.
47
Multiple Select
Extended ACLs can filter packets by ____? (Select three.)
IP address
Port
Routing Protocol
Protocol type
48
Multiple Choice
What is special about private IP addresses?
They are routable over the internet.
They are non-routable over the internet.
They must match the MAC address.
They are unique, as there can only be one in the entire world.
49
Multiple Choice
In dynamic routing, there is RIP, OSPF and ____?
SYN/ACK Protocol
NCC1701 Protocol
EIGRP Protocol
None of these
50
Multiple Choice
Which of the following protocols is used by devices to synchronize time?
UDP
TCP
CDP
NTP
51
Multiple Choice
RIP has an administrative distance of 120, and a directly connected device has the administrative distance of 0. What is the administrative distance of a static route?
0
1
90
110
52
Multiple Choice
What is at the end of every blocking ACL?
There is an implicit deny.
At the midpoint between the destination and source
There is an implicit allow.
None of these
53
Multiple Choice
If you were to split 10.0.0.0/8 evenly into two subnets, what would be the correct CIDR notation?
10.0.0.0/10 and 10.0.0.128/10
10.0.0.0/8 and 10.0.0.254/8
10.0.0.0/9 and 10.128.0.0/9
None of these
54
Multiple Choice
You want to improve network performance by limiting the size of broadcast domains. What is one way this can be done?
Hubs
Subnetting into small networks
Switches
Router-on-a-stick
55
Multiple Choice
How many available addresses are there per subnet if you have the address 192.168.10.0 with the subnet mask 255.255.255.128?
4
8
16
128
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