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WorksheetsNetwork Module Mid-Term Quiz 04
Total questions: 51
Worksheet time: 26mins
You want to send a layer 2 Ethernet frame to a group of devices connected to your local network. What type of communication will achieve your goal?
Unicast communication
Multicast communication
Broadcast communication
This key will complete the remaining of the command in CLI.
Ctrl + a
Space
Tab
Ctrl + d
?
Match the corresponding PDU name for each layer of the OSI model: (Layer 2): b PDU Name: _________________
Frame
Packet
Segment
Bit
Match the corresponding PDU name for each layer of the OSI model: (Layer 3): a PDU Name: _________________
Packet
Frame
Segment
Bit
Match the corresponding PDU name for each layer of the OSI model: (Layer 4): d PDU Name: _________________
Segment
Packet
Frame
Bit
Which of the following is added at the OSI Network layer?
A header field that identifies the type of frame
Source & Destination IP addresses
A header field that identifies how many routers are in the path
Source and destination port numbers
Source & Destination MAC addresses
What will a switch do when the destination MAC address of a frame is not in the MAC address table?
It broadcasts the frame out of all ports on the switch.
It forwards the frame out of all ports except for the port at which the frame was received.
It initiates an ARP request.
It sends a destination host unreachable message and drops the frame.
It forwards the frame out of the port that is associated with the destination MAC address.
As a network administrator, you are transitioning your company's network from IPv4 to IPv6. One of your tasks is to explain to the team why Network Address Translation (NAT) is not necessary in IPv6. Please choose the best reason from the options below:
IPv6 has integrated security.
IPv6 has a vast number of addresses.
IPv6 improves packet handling.
IPv6 increases routing capacity.
Which statement describes the treatment of ARP requests on the local link?
ARP requests must be forwarded by all routers on the local network.
ARP requests are received and processed by every device on the local network.
ARP requests are dropped by all switches on the local network.
ARP requests are received and processed only by the target device.
Which three principal aspects should be emphasized in your network security policy to protect data?
Confidentiality, Integrity, and Non-repudiation
Confidentiality, Integrity, and Availability
Integrity, Availability, and Accountability
Confidentiality, Availability, and Authentication
At a large multinational corporation, the IT department faced a major network outage that disrupted business operations for several hours. The initial investigation pointed to a possible issue with the data link layer of the network. To better understand the problem, the IT team needed to analyze the structure of the frames being transmitted over the network. During the review, the team focused on identifying the common parts present in all frame types supported by the data link layer. Which basic parts that are common to all frame types supported by layer two of OSI Model? (Choose three.)
Header
Checksum
Payload
Trailer
Footer
Below, it shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?
The switch will forward the frame to all ports.
The switch will forward the frame to all ports except port 4.
The switch will forward the frame only to ports 1 and 3.
The switch will discard the frame.
The switch will forward the frame only to port 2.
What information does the show ip int br command provide on a Cisco switch? Choose the correct answer from the options below.
Displays a detailed configuration of all IP addresses assigned to interfaces.
Shows a brief summary of IP interface information including IP addresses, interface status, and routing protocol status.
Lists all routing protocols configured on the device.
a) Provides statistics on IP traffic passing through each interface.
What is the decimal version of binary 00101111?
79
47
95
46
Which one is correct regarding order of OSI layers starting from Layer 1 up to Layer 7 in order?
Physical layer, Data link layer, Network Layer, Transport Layer, Session Layer, Presentation Layer, Application Layer
Application Layer, Presentation Layer, Session Layer, Transport Layer, Network Layer, Data link layer, Physical layer
Physical layer, Data link layer, Network Layer, Transport Layer, Application Layer, Session Layer, Presentation Layer
Data link layer, Physical layer, Network Layer, Transport Layer, Application Layer, Session Layer, Presentation Layer
Based on this Wireshark capture below, is this packet being fragmented?
Yes, it is
No, it is not
I don’t know
Which command is used in Windows to release the IP address leased by DHCP on a network interface?
ipconfig /all
ipconfig /renew release
ipconfig /release
ipconfig /release release
What protocol is used to discover the MAC address of hosts on the same local network?
Address Routing Protocol
Address Reassignment Protocol
Address Reverse Protocol
Address Resolution Protocol
Address Rename Protocol
What is the name given to a one-to-one Ethernet communication?
Full-duplex
Half-duplex
Multicast
Unicast
Broadcast
What is the value of Layer 4 - TCP in the Protocol field of IP Header?
17
6
53
443
9
What does the command arp -d do in cmd?
Display the ARP table
Disable ARP requests
Delete the ARP cache
Debug ARP packets
What algorithm is commonly used to calculate the FCS in Ethernet Frame?
AES (Advanced Encryption Standard)
SHA-256 (Secure Hash Algorithm 256-bit)
CRC (Cyclic Redundancy Check)
RSA (Rivest-Shamir-Adleman)
Without this header field, an improperly configured router could cause an IPv4 packet to bounce back and forth indefinitely.
TTL
HOP Limit
Protocol
Destination Address
The total maximum UTP cable length from end device to intermediary device is:
90 m
Depends on the category (5, 5e, 6)
Vendor and installation specific
100 m
Based on the logical topology below, what is the command to configure default gateway on the switch Net_A?
lp defaultgateway 10.10.10.254
lp defaultgateway 205.211.30.1
lp default-gateway 10.10.10.0
lp default-gateway 10.10.10.254
What statement describes a characteristic of MAC addresses? (Select two)
They are only routable within the private network.
They are added as part of a Layer 2 PDU.
They have a 48-bit binary value.
They have a 48-bytes binary value.
They are not needed when using IPv6.
This provides a method for a switch to determine whether the frame experienced transmission errors.
Frame Check Sequence
Transmission Validation Check
Data Integrity Check
Header Validation Check
What is the main reason that you would configure an Ethernet switch with an IP address?
So it can forward frames to local networks.
So it can forward packets to remote networks.
So it can be managed remotely.
Because it would be unkind to leave a switch without an IP address.
How does the Ethernet protocol detect if a frame transmitted over single-mode fiber cable was modified as a result of nearby EMI/RFI interference?
By checking the CRC
By checking the size of the frame
Fiber is completely immune to EMI/RFI interference
None of the answers
Based on the Wireshark capture below, what is the IP address of the computer that sent the ping (The dark highlighted one)?
10.0.0.33
10.0.0.1
9c:b6:d0:8f:51:43
40:0f:c1:f7:9a:2f
You can’t tell from this capture
The header of an Ethernet II frame contains a Type field that defines the type of data encapsulated by the frame? For example, the Type field value could be 0x0800.
True
False
If value on the type field of Ethernet II frame is is 1500 bytes / less in this field, it indicating the encapsulated frame length/payload.
True
False
Convert the subnet mask 11111111.11111111.11111111.11110000 from binary to decimal. Choose the correct decimal value from the options below:
255.255.255.0
255.255.255.128
255.255.255.240
255.255.255.248
Which connection provides a secure encrypted remote management CLI session to a Cisco switch?
Console connection
Telnet connection
AUX connection
SSH connection
Which address on a PC does not change, even if the PC is moved to a different network?
Default Gateway address
IP address
Logical address
Physical address
All of these will change
Under what circumstances will an IP packet be fragmented, and how can you identify fragmentation in Wireshark?
An IP packet will be fragmented when its size exceeds the Maximum Transmission Unit (MTU) - 1500 bytes of the network path. In Wireshark,
An IP packet will be fragmented when it is smaller than the MTU of the network path.
Fragmentation occurs when an IP packet is sent over a network with a higher MTU than the packet size.
IP packets are never fragmented; they are always sent as a whole.
Based on this output of IP Route, which one is the network entry that uses a dynamic routing?
209.165.200.225/32
192.168.10.0/24
0.0.0.0/0
10.1.1.0
192.168.10.1/32
Modern IP networks now combine services that used to require separate networks. This is called?
A combined network
A single service network
A converged network
A multi-mode network
What is a characteristic of a scalable network?
They are never overloaded with increased traffic.
That can grow in size with the company.
They are more reliable.
They offer an unlimited number of applications.
Which of the following are intermediate devices? (Circle/choose as many as you think is/are correct)
Wireless controller
Router
IP Phone
Laptop
Switch
Which of the following statements about MAC addressing is false?
MAC addressing provides device identification at the data link layer.
An Ethernet MAC address is a 48-bit/6-byte address.
MAC addresses must be unique to the Ethernet device/interface.
All vendors must register with the IEEE to obtain a unique 48-bit OUI.
The OUI is followed by a 24-bit vendor-assigned value.
Which networking component is commonly used to connect switches and routers to fiber optic cables?
SNMP
TCP
SFP
VLAN
1. A workstation is configured as follows:
IP address: 172.16.3.1
Subnet mask: 255.255.255.0
Default gateway: 172.16.3.0
What is the problem?
The default gateway address has been assigned a network address.
The subnet mask is not valid.
The workstation has been given a network address.
Which of the following best describes an IPv4 network broadcast address?
All 0 bits in the host portion of the address
All 1 bits in the host portion of the address
Any address ending in ".255"
All 0 bits plus a rightmost 1 bit in the host portion of the address
All 1 bits plus a rightmost 0 bit in the host portion of the address
Which of the following is a characteristic of multi-mode fiber-optic cable?
Relatively smaller core with few paths for the light to travel
Generally used between cities, rather than between buildings or in a downtown area
Generally uses a LED as the light source
More expensive than single-mode
Which of the following IS NOT a service offered by layer 2?
Routing
Framing
Linking upper layers to the physical media
Error Detection
Media Access Control
What term is used to describe a route in a networking device that forwards packets to a designated gateway when no specific route for the destination network is found in its routing table?
Static route
Dynamic route
Default route
Fast route
A host in the network has been provided with its layer 3 addressing by a server in the network. This is called?
Dynamic Host Configuration Protocol (DHCP)
Domain Name System (DNS)
Address Resolution Protocol (ARP)
ICMP echo request
ICMP echo reply
What is the command that would set adminpass as the privileged exec password? (Choose all that apply)
enable password adminpass
Line con 0
password adminpass
enable secret class
enable secret adminpass
Line con 0
secret adminpass
Refer to the image below. What is the IP address of Laptop3's default gateway?
205.211.30.0.2
192.168.200.5
172.16.0.100
172.16.0.59
192.168.100.254
Refer to the logical topology below. You just sent an ICMP echo request from Host A to the Server. As the reply leaves R1, what will be the source IP and MAC?
The source IP will be R2 Fa0/0 and the source MAC will be the server.
The source IP will be R2 Fa0/0 and the source MAC will be R2 Fa0/0.
The source IP will be the server and the source MAC will be R1 Fa0/0.
The source IP will be Host A and the source MAC will be the server.
The source IP will be R2 Fa0/1 and the source MAC will be R2 Fa0/1.
