JN0-100章节练习(2018.09.29)

多项选择题
Which two statements best describes the role of a router on a broadcast domain?（）
A.Routers facilitate communications within a broadcast domain.
B.Routers facilitate communications between broadcast domains.
C.Routers are used to break up broadcast domains into separate networks.
D.Routers are used to connect small broadcast domains and form larger more efficient broadcast domains
单项选择题
You have just issued the command commit confirmed and your network continues to be operational with no further changes required. You issue a commit and-quit. A short time later, users start complaining about network problems. Which commands (in order) need to be entered to resolve this issue?（）
A.A
B.B
C.C
D.D
单项选择题
Which statement is correct about logical units on Juniper Router interfaces?（）
A.Logical units are used only when a Layer 2 identifier is present such as a VLAN
B.A logical unit of 0 is required when using a frame-relay DLCI
C.A logical unit is always required
D.Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.
单项选择题
In which mode are users allowed to configure the device, including interfaces, protocols, user access, and system hardware properties?（）
A.priviledged mode
B.configuration mode
C.monitoring mode
D.operational mode
单项选择题
Which statement is correct about the validate option when upgrading JUNOS software？（）
A.It will check the MD5 checksum of the install package.
B.It will check if the device meets the memory requirements for the install package.
C.It will check the compatibility of the configuration with the install package.
D.It will check if the device meets the storage requirement for the install package.
单项选择题
Which command sequence shows traffic per queue for an interface?（）
A.show interfaces queue ge-0/0/0
B.show statistics queue detail
C.show interfaces ge-0/0/0 statistics extensive
D.monitor interface ge-0/0/0 queue
多项选择题
Which three statements describe the Transmission Control Protocol (TCP)?（）
A.TCP is a transport layer protocol.
B.TCP is faster than the User Datagram Protocol (UDP).
C.TCP provides delivery notification and error checking mechanisms.
D.TCP uses a best effort delivery approach.
E.TCP application examples include HTTP and SMTP.
多项选择题
What are three advantages of dynamic routing protocols over static routing protocols?（）
A.lower administrative overhead
B.increased network availability
C.greater network scalability
D.easier to implement qualified next hops
E.easier ECMP route implement
单项选择题
When a local loopback is activated on a PPP serial link, what indicates that the local interface is good?（）
A.A ping to the local address succeeds.
B.A ping to the remote address succeeds.
C.A ping to the remote address received a 'TTL expired' message.
D.The interface shows a flag indicating that a loop is detected.
多项选择题
Which two statements are true regarding interface properties? （）
A.MTU and speed must be configured under each unit.
B.Physical parameters such as MTU, duplex mode, and speed are configured under the interface name.
C.IP and IPv6 addresses are configured under a unit-number.
D.DLCI numbers, VPI/VCI values, and VLAN tags are physical parameters.