Subnetting
What is the last usable host IP address for the 172.45.120.0/23 network?
A) 172.45.120.254
B) 172.45.121.254
C) 172.45.122.254
D) 172.45.123.254
B) 172.45.121.254
A solution that allows to control access to a shared transmission medium in 802.11 networks is known as:
A) CWDM
B) CSMA/CD
C) CDMA
D) CSMA/CA
D) CSMA/CA
Which of the answers listed below refer(s) to UTP cabling? (Select all that apply)
A) Twisted-pair copper cabling
B) Used in Ethernet networks and telephone systems
C) Low cost and ease of installation
D) Takes advantage of additional protective cover reducing signal interference from outside sources
E) Coaxial cabling
F) Not surrounded by any shielding that would provide protection against interference from outside sources
G) Fiber-optic cabling
H) In Ethernet networks, installed with RJ-45 connector type
A) Twisted-pair copper cabling
B) Used in Ethernet networks and telephone systems
C) Low cost and ease of installation
F) Not surrounded by any shielding that would provide protection against interference from outside sources
H) In Ethernet networks, installed with RJ-45 connector type
Which of the following answers refers to a software or hardware that monitors network traffic and depending on the configuration settings applied to each data packet either blocks it or allows it to pass through?
A) HIDS
B) Firewall
C) Packet filter
D) Vulnerability scanner
B) Firewall
Which of the following solutions enables simultaneous digital transmission of voice, video, data, and other network services over a PSTN?
A) WiMAX
B) PoE
C) ISDN
D) HSPA+
C) ISDN
How many usable IP addresses can be assigned to hosts on a /26 subnet?
A) 254
B) 126
C) 62
D) 30
C) 62
A wireless networking topology in which client devices communicate directly with each other without the use of a controlling Access Point (AP) is called:
A) IEEE 802.3af
B) Star topology
C) Ad hoc mode
D) IEEE 802.3at
E) Infrastructure mode
C) Ad hoc mode
The main difference between the UTP and STP cabling is that the UTP cable takes advantage of additional protective cover reducing signal interference from outside sources.
A) True
B) False
B) False
A device designed to filter and transfer data packets between dissimilar types of computer networks is called:
A) Hub
B) Load balancer
C) Router
D) Switch
C) Router
T1 lines support data transfer rates of up to:
A) 1.544 Mbps
B) 2.048 Mbps
C) 34.368 Mbps
D) 44.736 Mbps
A) 1.544 Mbps
What is the dot-decimal representation of a /13 subnet mask?
A) 255.240.0.0
B) 255.248.0.0
C) 255.252.0.0
D) 255.254.0.0
B) 255.248.0.0
A wireless networking topology consisting of at least one Access Point (AP) is referred to as:
A) IEEE 802.3at
B) Infrastructure mode
C) IEEE 802.3af
D) Ad hoc mode
E) Peer-to-peer mode
B) Infrastructure mode
Examples of copper cabling types used in Ethernet networks include: (Select all that apply)
A) STP
B) Multimode
C) UTP
D) Single-mode
E) Coax
A) STP
C) UTP
E) Coax
Which of the answers listed below refers to a data link layer (layer 2) device designed to forward frames between network segments?
A) Hub
B) Switch
C) Firewall
D) Router
B) Switch
Which of the answers listed below refers to the maximum data transfer rate of E1 connection?
A) 1.544 Mbps
B) 2.048 Mbps
C) 34.368 Mbps
D) 44.736 Mbps
B) 2.048 Mbps
What is the maximum number of subnets and hosts per subnet for the 192.168.50.247 255.255.255.224 network?
A) 2 subnets, 126 hosts per subnet
B) 4 subnets, 62 hosts per subnet
C) 8 subnets, 30 hosts per subnet
D) 16 subnets, 14 hosts per subnet
C) 8 subnets, 30 hosts per subnet
A type of network consisting of computers and peripheral devices that use high-frequency radio waves to communicate with each other is known as:
A) MAN
B) WLAN
C) LAN
D) VLAN
B) WLAN
Which of the answers listed below refer to the characteristics of multimode fiber optics? (Select 3 answers)
A) Uses laser as the source of light
B) Transmission distances of up to 2 km
C) More expensive than single-mode fiber optics
D) Transmission distances of up to 100 km
E) Less expensive than single-mode fiber optics
F) Uses LED as the source of light
B) Transmission distances of up to 2 km
C) More expensive than single-mode fiber optics
E) Less expensive than single-mode fiber optics
F) Uses LED as the source of light
The disadvantage from using this device results from the fact that any incoming signal on any of its ports is re-created and sent out on any connected ports which has a negative impact on network performance.
A) Router
B) Switch
C) Bridge
D) Hub
D) Hub
T3 lines support data transfer rates of up to:
A) 1.544 Mbps
B) 2.048 Mbps
C) 34.368 Mbps
D) 44.736 Mbps
D) 44.736 Mbps
Which of the following answers lists the decimal notation of the binary number 11100000?
A) 192
B) 224
C) 240
D) 248
B) 224
Which of the answers listed below refers to a wireless protocol designed to provide communication between appliances in a home automation network?
A) FCoE
B) SDN
C) Z-Wave
D) SIEM
C) Z-Wave
What are the characteristic traits of single-mode fiber optics? (Select 3 answers)
A) Transmission distances of up to 2 km
B) More expensive than multimode fiber optics ( Your answer)
C) Uses LED as the source of light ( Your answer)
D) Transmission distances of up to 100 km ( Your answer)
E) Uses laser as the source of light ( Your answer)
F) Less expensive than multimode fiber optics
B) More expensive than multimode fiber optics
D) Transmission distances of up to 100 km
E) Uses laser as the source of light
Which of the following answers describe the features of a network bridge? (Select 3 answers)
A) Makes forwarding decisions in hardware (ASIC)
B) Newer and more effective type of network device in comparison to network switch
C) Typically capable of connecting more network segments than switch (more physical ports)
D) Makes forwarding decisions in software
E) Typically capable of connecting fewer network segments than switch (fewer physical ports)
F) Older and less effective type of network device in comparison to network switch
D) Makes forwarding decisions in software
E) Typically capable of connecting fewer network segments than switch (fewer physical ports)
F) Older and less effective type of network device in comparison to network switch
Which of the following answers refers to the maximum data transfer rate of E3 connection?
A) 1.544 Mbps
B) 2.048 Mbps
C) 34.368 Mbps
D) 44.736 Mbps
C) 34.368 Mbps