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Debesys
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1
Which layer of the internet protocol suite is responsible for code formatting and conversion and graphic standards
Transport layer
Link layer
Application layer
Internet layer
2
RIP uses which metric to choose a path of a packet?
The cost of sending the packet
Hop count
Time it will take for the packet to reach the destination
Channel capacity
3
Which optical phenomenon is used in optic-fibre cables?
Light Interference
Total internal reflection
Rayleigh Scattering
Fluorescence
4
What is a hybrid cloud?
A blend of private cloud and legacy on-premises hardware
A cloud service deployed across multiple offices or locations
A blend of public and private cloud services with orchestration between
None of the options are correct
5
A _ protects an organization's network from outside attack
Proxy
Firewall
Extranet
Fortress
6
A cloud solution can never offer which advantage over an on-premise solution
None of the other options are correct
Reliability
Security
Economic advantage
7
Acknowledgements, sequencing, and flow control are characteristics of which protocol in Internet Protocol Suite?
TCP
IPv6
UDP
OSFP
8
Demultiplexing of data between applications occurs on which layer of Internet Protocol Suite?
Internet
Transport
Application
Link
9
Which network topology is the most resistant to physical cable failure:
Ring
Mesh
Star
Bus
10
If the IP address of a website is known it is possible to reach it without which protocol?
DNS
IP
RIP
HTTP
11
Docker platform was originally designed to run on which operating system?
Windows
Linux
Docker is OS agnostic
FreeBSD
12
Mathematical operations in checksum algorithm are performed in following order.
sum, compliment, wrap
sum, wrap, compliment
wrap, compliment, sum, multiply by -1
sum, multiply by -1, wrap, compliment
13
Docker software runs natively on which operating system?
MacOS
Windows
Docker is OS agnostic
Linux
14
Which of the following options is not a SaaS service
IBM Bluemix
Google Sites
Dropbox
Office 365
15
In TCP protocol how many segments are needed to gracefully end the connection?
2
1
0
4
16
Which of the fields in IPv4 header are responsible for packet fragmentation?
Identification
Fragment offset
All of the listed fields
Flags
17
What is a public cloud?
A cloud environment owned, operated and controlled by a public company
A cloud service that can only be accessed from a publicly shared computer
A multi-tenant cloud environment accessed over the internet
A cloud formation that can be accessed by anyone
18
How many layers are there in OSI (Open Systems Interconnection) model?
7
4
8
5
19
Which device would NOT be typically used to expand LAN to include more computers?
Hub
Wireless Access point
Firewall
Switch
20
What does a computer network allow computers to share?
Hardware
Software
Hardware, Software and Internet connection
Internet connection
21
What is IP address size?
64 Bytes
255 bits
16 bits
4 Bytes
22
In which software distribution model a cloud provider manages and hosts an app that users access
laaS
DaaS
SaaS
PaaS
23
Which of the following is not a type of a client in cloud architecture model?
Mobile client
Thick client
Stationary client
Thin client
24
What are Kafka partitions used for?
Load balancing of data
Data segmentation in to logs of defined size
Data encryption
Data backup
25
What protocol can be used to find the hardware address of a local device?
Ethernet
MAC
RIP
ARP
26
Which are types of network communications media?
Hub/Switch / Router
All options are wrong
Ethernet Cables / Fibre Optic Cables
Network Interface Card
27
ARP is typically used to bridge the gap between what two protocols?
TCP and UDP
IP and World Wide Web domain names
Ethernet and IP
TCP and IP
28
Which type of virtualization has highest performance overhead?
Containerization
Hardware Virtualization
Paravirtualization
Desktop Virtualization
29
Which of the following sentences describes Ethernet most accurately?
Ethernet is used in local networks to connect multiple devices.
Ethernet is used to connect multiple networks together.
Ethernet is used to establish point-to-point connection between two devices
None of the sentences above can be used to describe Ethernet.
30
What is the purpose of a Kafka broker?
To produce messages
To consume messages
To route messages to different networks
To store data and serve client requests
31
What is the maximum hop count supported by RIP?
Infinite
16
15
255
32
What is the subnet address for 172.16.112.1/24?
172.16.112.255
172.16.112.0
172.16.96.0
172.16.0.0
33
Which programming model is the basis of Apache Hadoop software?
POSIX Threads
Grand Central Dispatch
MapReduce
Spurious wakeup
34
Which search algorithm does RIP employs?
Bellman-Ford
A* (A star)
Floyd-Warshall
Dijkstra's
35
Kubernetes system is routinely used in conjunction with
Apache Spark
Docker Swarm
Docker
Apache Hadoop
36
Which search algorithm does OSPF protocol employ?
Floyd-Warshall
A* (A star)
Bellman-Ford
Dijkstra's
37
What ensures data availability in case a Kafka broker fails?
Replicas
Backups
Segments
Snapshots
38
Which functionality has been added in IPv6 that doesn't exist in IPv4?
Type of service selection
Port forwarding
Protection from packet reordering through flow labelling
Packet fragmentation
39
What are Load Balancers?
Networking device that forwards data between computer networks.
Hardware, software that distributes traffic to servers in the resource pool
Software which redirects web traffic and obfuscates its source.
Hardware which limits connectivity to a resource to protect it.
40
What is the main reason for introducing IPv6?
The need for more IP addresses
To increase the reliability of the internet
To ensure security of internet traffic
The need for faster transfer speeds
41
What is the typical order in which DNS servers are queried?
Root, Local, Authoritative, Top Level Domain
Authoritative, Local, Root, Top Level Domain
Local, Root, Top Level Domain, Authoritative
Local, Authoritative, Top Level Domain, Root
42
Serverless computing is often chosen for which advantage?
It is highly elastic by nature.
Low startup time.
It does not require servers to run.
Little to no vendor lock-in.
43
A repository of data from disparate sources that is stored in its original, raw format is called...
Data Lake
Data Warehouse
Data Mesh
Database
44
Which protocol is used to achieve reliable data transmission?
TCP
IPv6
RIP
UDP
45
In MapReduce which of the following maps input key/value pairs to a set of intermediate key/value pairs?
Mapper
Sort
Reducer
Merge
46
Maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.0 subnet mask?
256
254
255
0
47
A hypervisor is a _.
Hardware used to host cloud services
Software used to supervise cloud tenants
Virtual machine monitoring software
All options are incorrect
48
Multitenancy in context of cloud computing offers which advantage?
Increases security and stability of services
Allows to cut costs
Decreases software complexity and development costs
All of the statements are true
49
In a design, one computer or dedicated storage device acts as a central storage unit for the network
Bus topology
Client Server
Star topology
Peer to Peer
50
When data is encapsulated, which is the correct order?
Data, segment, packet, frame
Segment, data, packet, frame
Data, segment, frame, packet
Data, frame, packet, segment
51
Which of the services models typically requires the highest level of technical literacy from the client?
SaaS
PaaS
All of the choices are equivalent in regards of the knowledge needed.
laaS
52
Which concept is not part of VXLAN protocol?
VXNET
Underlay network
VTEP
Overlay network
53
What physical medium is most commonly used to connect continents across oceans?
Coaxial cable
Twisted-pair wire
Fiber-optic cable
Microwaves
54
Ethernet frame contains
None of the above
Port number
Source MAC address
Destination IP address
55
In MapReduce the number of maps is usually driven by the size of
Computational complexity
Outputs
Inputs
Tasks
56
Which protocol allows to dynamically assign IP addresses to devices on the network?
DNS
RIP
DHCP
ARP
57
According to OSI model ARP resides on which layer?
Transport layer
Data Link layer
Application layer
Session layer
58
Which of the following fields are NOT a part of IPv4 header?
Source address
Header checksum
Port number
Time to live
59
For very large networks, _ topology is used
Star
Bus
Ring
Mesh
60
What is Apache Kafka primarily used for?
Databases
Machine Learning
as MapReduce implementation
Real-time messaging, streaming and processing
61
What are the three main network topologies?
Bus / Mesh / Star
Bus/Oval / Star
Mesh/Star/Square
Bus/Square/Star
62
What is a server in a computer network?
Powerful computer that provides a service such as centralised file storage
Network media such as cables
A network administrator
None of the other options are correct
63
A distributed network configuration in which all data/ information pass through a central computer is
Ring network
Point to point network
Bus network
Star network
64
How many copper wires are inside a twisted pair Ethernet cable?
8
1
2
4
65
How many hexadecimal digits are in a MAC address?
8
2
12
16
66
What is the primary role of Zookeeper in a Kafka cluster?
Storing actual message data
Managing topic and partition metadata.
Balancing load between Kafka brokers.
Compressing data for faster transmission.
67
Which of the following is private IP address?
168.172.19.39
192.168.24.43
12.0.0.1
255.255.255.255
68
If a Kafka Broker goes down, what ensures the data is not lost?
Data is replicated across multiple brokers in the cluster
Data is backed up in cloud storage
Data is saved in external databases
Kafka uses failover servers
69
Which device is only displayed on physical topology map, but not on logical topology map of a network
Host
Switch
Hub
Router
70
Which of the following ensures message order in Kafka?
Partition
Broker
Consumer
Replica
