Network+ Quiz Flashcards
T/F Networks need to have a unique IP Network address i.e. name?
True
What is the name for the address, the burned in address, that is given to every network interface card?
MAC address
Physical address
Layer 2 address
A layer 2 _____ makes forwarding decisions for network traffic cased on the MAC address of the intended destination.
Switch
T/F A multi-layer switch is capable of making later 2 and layer 3 forwarding decisions.
True
A layer 3 _____ connects separate IP networks by making forwarding decisions based on IP network addresses, layer 3 addresses.
Router
A _____ creates a barrier between your private inside network and the public outside world.
Firewall
In which of the following network areas would you likeley place your public facing web servers? A. DMZ B. LAN C. Outside network D. Public Telephone Network
A. DMZ
T/F Due to high traffic needs, Load Balancers have to be physical servers/appliances and not virtual servers/appliances
False
T/F A Unified Threat Management Firewall is oly used to prevent someone from an outside network getting into our inside network.
False
You have two web servers, Web Server 1 and Web Server 2. Web Server 1 gets all of the traffic. From the list below, which would be the best option to help balance the internet requests between the two?
A. As the person browsing your network to click the Web Server 1 link if their clock reads an odd numbered minute and Web Server 2 if it’s an even numbered minute.
B. Implement a Load Balancer
C. Turn off Web Server 1 until Web Server 2 has served an equal number of requests
D. Install a third web server
B. Implement a Load Balancer
T/F A user with only the minimum permissions to access a web server has the ability to perform malicious acts against the server.
True
An Intrusion Detection System is the only system needed to protect your systems from malicious traffic.
False
Which of the following are valid types of Intrusion Detection and/or Prevention systems? Choose 2.
• Network Intrusion Detection System (IDS)
• Network Threat Treatment System
• Network Intrusion Prevention System (IPS)
• Host based Intrusion Detection/Prevention System (HIDS)
- Network Intrusion Detection System (IDS)
- Network Intrusion Prevention System (IPS)
- Host based Intrusion Detection/Prevention System (HIDS)
Before high speed internet what device was used to connect computers over the Public Switched Telephone Network (PSTN)?
A modem
T/F A hub is an older technology but just like a switch it makes forwarding decisions based on layer 2 addresses.
False
T/F When one device connected to a hub talks, all other connected devices will receive the message.
True
How many devices can talk at the same time when connected to a hub?
1
What tools helps us prioritize certain types of network traffic over others? A. Exchange Server B. Firewall C. T1 Line D. Packet Shaper
D. Packet Shaper
Priority traffic with a packet shaper is often referred to as \_\_\_\_\_. A. Quantity of Service B. SoS C. QoS D. PoS
C. QoS or Quality of Service
QoS stands for
Quality of Service
What is a content filter?
A content filter makes traffic decisions based on company policies that govern the type of web site that a user is allowed to view
What device connects wireless devices to a network?
Access Point
In the following IP address 192.168.16.122/24, the 192.168.16 portion of the address represents what?
The network #
List the 4 steps of the dhcp address assignment process in order.
- Discover
- Offer
- Request
- Acknowledgement
T/F: A DHCP server can be configured to pass along additional information with an IP address such as default gateway, DNS servers, WINS servers and other information
True
T/F: DHCP scopes, aka DHCP pools, can only be created on servers running Microsoft or Linux operating systenms and not on routers such as Cisco routers
False
A successful ping to www.cbtnuggets.com can tell you what two things?
- DNS is working - you receive a response back from an IP address
- The default gateway is set correctly
The _____ determines what portion of the ip address is representing the network and what portion of the ip address represents the host addresses.
Subnet mask
Which Windows command will give you information about the ip addresses, configured DNS servers and the default gateway for your windows computer?
ipconfig /all
What tool can be used to view the traffic that is exchanged between a DHCP server and client device when DHCP address is assigned to the client device?
Protocol analyzer like Wireshark
Which of these would you not see if a wireshark capture of a successful DHCP assignment? DHCP Offer DHCP Request DHCP ACK DHCP Discover DHCP Retain
DHCP Retain
T/F; Cache is a place where you can store, usually temporarily, information that’s been received.
True
Generally speaking, in a client-server model, the entity that’s providing the information is considered to be the ______.
Server
Refers to a record in DNS for an IPv4 address:
An A record
Created an alias from one name to another:
CNAME record
An IPv6 128 bit address in DNS
AAAA record
Used by mail servers trying to forward email messages to another email server in a different domain.
MX record
T/F; MX records are used for reverse lookups, when you have an IP address already and want to know the name behind it.
False
With a feature called _____ DNS you can have a moving IP address still mapped to a single name.
Dynamic
Which of the following DNS records is used for reverse lookup? A. CNAME B. Pointer C. A D. Quad A (AAAA)
Pointer
T/F; The basic ipconfig command shows all of the details regarding a DNS server or information about the lease time if it is a DHCP address.
False
Which command flushes old DNS information from cache?
ipconfig /flushdns
What command shows all the cached DNS records on the machine?
ipconfig /displaydns
What command shows more detailed network configuration information for a machine?
ipconfig /all
T/F: If you are looking for a certain type of record, you could set the type that you’re looking for in interactive mode with nslookup and then issue the requests.
True
If your public IP address changes, the _____ DNS constantly keeps it updated with the correct information regarding the IP address.
Dynamic
T/F: Formatting differences are completed as the very first step when communication originates.
False
T/F: As a message gets handed down it gets slightly bigger every step of the way.
True
When a message gets delivered there are _____ that need to be followed on the receiving end of the communication.
Protocols
The _____ model is a model or an idea of how we can categorize functions that take place inside a device that’s communicating on a network.
OSI
Which of the following is not true about the OSI model?
A. The numbering starts from the top
B. They are numbered
C. There are 7 functions
D. They work together in a protocol stack
The numbering starts from the top
T/F: Layer 5 of the OSI model is the transport layer.
False
At which layer does the router make routing decisions? A. Layer 4 B. Layer 5 C. Layer 3 D. Layer 2
Layer 3
