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