ابو يزن نهائي
What is the role of storage infrastructure in a data center?
Storing furniture and equipment
Storing digital data
Providing internet services
Manufacturing computer hardware
What are the main components of the storage infrastructure in a data center?
Security and system
Engineering and physical structure
Computing, storage, and networking
Cars and facilities
What is the primary role of Fiber Channel switches in a data center?
Routing data packets over the internet
Providing high-speed connections for storage devices
Achieving cybersecurity
Supplying power to equipment
What is the main purpose of partitioning the storage infrastructure in a data center?
Increasing network complexity
Improving security
Facilitating data management
Reducing capacity
Which of the following is a primary goal of data center security?
Maximizing energy efficiency
Minimizing data storage costs
Protecting data and ensuring confidentiality, integrity, and availability
Enhancing network speed.
What is the purpose of environmental monitoring in a data center?
Monitoring the weather outside the data center
Controlling the room temperature for employee comfort
Monitoring temperature, humidity, and other environmental factors to prevent equipment overheating.
D. Managing network traffic.
What is the purpose of regular server hardware maintenance in a data center?
Enhance internet speed.
Optimize software applications.
Prevent hardware failures and ensure uninterrupted operation.
D. Improve data storage capacity.
Which of the following is a benefit of implementing a regular backup and disaster recovery plan in a data center?
A. Reducing server processing speed
B. Minimizing data loss in case of failures or disasters
C. Decreasing network security
D. Increasing energy consumption
Which of the following is a common maintenance task for networking equipment in a data center?
Replacing server racks
B. Upgrading operating systems
C. Cleaning dust and debris from switches and routers
D. Increasing server storage capacity
Data centers do not require backup and disaster recovery plans if they have robust security measures in place.
True
False
Regular software updates and patches are unnecessary in a data center environment as they may disrupt ongoing operations.
True
False
Cleaning dust and debris from networking equipment in a data center is an unnecessary task as it does not affect performance.
True
False
Redundant power supplies and cooling systems are essential components of data center infrastructure to ensure high availability.
True
False
Data center staff should be trained to recognize and respond to environmental factors, such as overheating or water leaks, to prevent potential damage to equipment.
True
False
What are the ports in a data center, and what is their primary role?
Physical sections of the data center
Points of entry and exit for data
Computers in the data center
Data storage locations
What is Port Filtering, and how is it used to enhance security in a data center?
Organizing cables
Filtering excess data
Monitoring access to ports
Type of network cables
What are some authentication methods that can be applied to ports to ensure secure access to a data center?
Password
Programming language
Username
Cable color
What is Port Encryption, and how can it contribute to protecting sensitive data when transmitted over the network?
Encrypting communications over ports
Connecting ports to batteries
Improving port speed
Covering ports with insulating materials
How can a data center effectively detect and prevent attempts to hack into ports?
Spying on users
Monitoring and logging port activities
Periodically disabling the network
Regularly changing sensitive data
What happens to packets with source IP addresses that do not match the binding table in IP Source Guard?
They are forwarded to the destination without any checks.
They are dropped, preventing unauthorized access to the network.
They are rerouted to a different IP address.
They trigger an alert but are still forwarded to the destination.
What is Port Hacking, and how can it be prevented in a data center?
Infiltrating data storage locations
Altering signal pathways
Penetrating and exploiting an unauthorized open port
Upgrading hardware without permission
Software-Defined Networking plays a significant role in improving network management inside the data center.
True
False
Caching helps improve service delivery performance in data centers
True
False
Cooling techniques in data centers are only used to cool the main components.
True
False
The location of a data center's construction is not very important.
True
False
The energy consumption in data centers has no impact on the environment.
True
False
Disasters are rare and unlikely risks to data centers.
True
False
Disasters can be entirely avoided using modern technology
True
False
Data center security include data protection.
True
False
Caching increases data access delays.
True
False
There are specific systems and software used in data centers to ensure continuity.
True
False
IP Source Guard operates at the transport layer of the OSI model.
True
False
IP Source Guard is used to prevent unauthorized IP addresses from sending packets on a network.
True
False
Cisco LISP uses EID to RLOC mapping.
True
False
One of advantages of Splitting EID and RLOC functions is Simplify multi-homed routing
True
False
LISP requires changing the existing Internet infrastructure.
True
False
One of the common use cases for deploying LISP is DHCP.
True
False
One of main features in Cisco Nexus is support vPC and Fabric-path
True
False
STP works at Layer 2 in the OSI model?
True
False
Data centers are not important for businesses?
True
False
If one of the port channels breaks down, does the port channel stop working?
True
False
When we have more cables in the port channel we get more speed?
True
False
Is backup important in a data center?
True
False
OTV is a network virtualization technology used to create overlay networks over existing physical networks.
True
False
VXLAN is primarily used for Layer 3 routing and does not support Layer 2 bridging between virtual networks.
True
False
Fabric Extenders (FEX) are typically used in data center networks to provide additional network ports and simplify cabling.
True
False
OVT is a network virtualization technology used to create overlay networks over existing physical networks.
True
False
VXLAN is designed to provide network segmentation and isolation within a single data center, but it cannot extend across multiple data centers.
True
False
FEX modules are typically standalone devices that operate independently of a parent switch.
True
False
What is LISP stand for?
LISP is stand for Locator ID Separation Protocol
LISP is stand for Local Interfaces Subnetting Protocol
LISP is stand for Locator Interfaces Separation Protocol
LISP is stand for local ID Separation Protocol
What are internet Traditional routing concerns?
Aggregation, Traffic Engineering and Multi-homing and Routing Instability.
Network outage and lack of alternative routing paths available for recovery
Heaviness in the network and slow movement.
Dispersal, Steering engineering, Single-homing, and routing stability.
What the difference between traditional IP Scheme and LISP mechanism?
In Traditional IP Scheme, there is no separation between location and identity, but LISP mechanism separates the location and identity of a device through two different parts.
In Traditional IP system, there is a separation of location and identity, but the LISP mechanism The location and identity of the device are not separated by two different parts
In IP, two locations are linked using names instead of logical addresses
In LISP, two sites can't be linked using names instead of logical addresses
What is the difference between Layer3 Switches and Routers in Datacenters?
Layer 3 Switches handle Layer2 and routing Traffic in VLANs environment in more efficient way in large Network Datacenters
Layer 3 switches perform packet switching by microprocessor-based software routing engines, while Routers perform packet switching by hardware
A Router mainly it mainly faces simple LAN connections, and the routing path is far less complex than that of a Layer 3 switch
Layer 3 switches perform packet switching by microprocessor-based software routing engines, while Routers perform packet switching by hardware
Why are Nexus Switches are important in datacenters?
Because they provide high availability and stability for connecting servers and datacenter switches.
It does not improve the reliability, speed and resiliency of this switched network
It have the worst quality items that would need constant repair as long as you use them properly
The Nexus series supports the use of Nexus 2000 series fabric extenders to narrow down the system and does not provide a large-scale virtual topology in the data center
What does STP mean?
Spanning Tree Protocol
Rapid Spanning Tree Protocol
Multiple Spanning Tree Protoco
Stopped Tree Protocol
Is it an enhanced model of STP in which the listening and blocking modes have been merged into a single mode?
RSTP
MSTP
Root
How do data centers ensure the security of their facilities?
Surveillance Systems
Security Personnel
A and B
None of above
The minimum port channel is?
2
4
6
8
Equipment found in a data center?
Switches
Routers
Storage Devices
All of above
Which of the following is a common use case for VXLAN in modern data centers?
Creating traditional VLANs
Simplifying network management
Enabling workload mobility across data centers
Optimizing routing protocols
Which protocol is commonly used for encapsulating VXLAN packets?
IPsec
UDP
BGP
ARP
What is the primary role of OVT (Overlay Virtual Transport) in a network architecture?
To physically connect data centers
To create virtual networks over existing physical networks
To improve the speed of WAN connections
To manage network security policies
What is a common use case for Fabric Extenders (FEX) in a data center network?
Load balancing traffic between data centers
Providing Layer 7 application security
Extending the number of network ports available in a rack
Managing virtual machine workloads
What does VXLAN stand for?
Virtual Extra-Large Network
Virtual Extensible LAN
What does OTV stand for?
Open Transport Vehicle
Overlay Transport Virtualization
Online Television Viewer
Optical Transmission Vector
What does FEX stand for?
Fiber Extension
Fabric Extender
File Exchange Protocol
Forwarding Extension
Which protocol is commonly used to carry VLAN information between Cisco switches?
VTP (VLAN Trunking Protocol)
STP (Spanning Tree Protocol)
OSPF (Open Shortest Path First)
RIP (Routing Information Protocol)
How does EtherChannel provide increased bandwidth?
By aggregating multiple physical links into a single logical link.
By increasing the speed of individual network devices connected to it.
By reducing network latency and improving data transmission speed.
By automatically balancing network traffic across connected devices.
What is the main function of AAA?
Managing user access control, ensuring secure login, and tracking user activities.
Providing high-speed internet access to users.
Managing network hardware and software resources.
Encrypting data transmission over the network.
Port security is used to protect the switch at which layer?
(Layer 2)
(Layer 3)
(Layer 4)
(Layer 7)
(Layer 1)
(Layer 5)
(Layer 6)
What is the default mode of operation for PagP?
Auto
Desirable
Passive
On
What is the default mode of operation for LACP?
Auto
Desirable
Passive
Active
What does AAA stand for?
All About Access
Authentication, Authorization, and Accounting
Advanced Access Algorithm
Automated Authorization Approach
Which protocol is commonly used to implement Port "Ether" Channels?
LACP
PAgP
STP
RIP
Which protocol allows for the creation of EtherChannels with more than eight physical links?
LACP
PAgP
STP
RIP
Which protocol is an open standard and supports only full duplex?
LACP
PAgP
STP
RIP
Which network attack involves sending fake MAC addresses to fill the MAC table and cause network congestion?
ARP Spoofing
ICMP Smurf Attack
DNS Spoofing
DHCP Starvation Attack
Which protocol is commonly used for negotiating and managing EtherChannel links between switches?
PAgP
LACP
STP
ARP
Which of the following is NOT a DHCP message type?
DHCP Discover
DHCP Release
DHCP Offer
DHCP Acknowledgment
Which process verifies the username and password of a user?
Authorization
Authentication
Encryption
Accounting
Which component of AAA records user activities?
Authentication
Authorization
Accounting
Encryption
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